diff --git a/SoObjects/Appointments/SOGoAppointmentFolder.h b/SoObjects/Appointments/SOGoAppointmentFolder.h
index b072bb20f..0ca7c0868 100644
--- a/SoObjects/Appointments/SOGoAppointmentFolder.h
+++ b/SoObjects/Appointments/SOGoAppointmentFolder.h
@@ -38,11 +38,17 @@
 
 #import "SOGo/SOGoFolder.h"
 
-@class NSString, NSArray, NSCalendarDate, NSException, NSMutableDictionary;
+@class NSArray;
+@class NSCalendarDate;
+@class NSException;
+@class NSMutableDictionary;
+@class NSString;
+@class NSTimeZone;
 @class GCSFolder;
 
 @interface SOGoAppointmentFolder : SOGoFolder
 {
+  NSTimeZone *timeZone;
   NSMutableDictionary *uidToFilename;
 }
 
@@ -106,7 +112,7 @@
 
 - (NSArray *) fetchAllSOGoAppointments;
 
-- (NSArray *) calendarFoldersInContext: (WOContext *) context;
+- (NSArray *) calendarFolders;
 
 @end
 
diff --git a/SoObjects/Appointments/SOGoAppointmentFolder.m b/SoObjects/Appointments/SOGoAppointmentFolder.m
index 806919003..b877f3007 100644
--- a/SoObjects/Appointments/SOGoAppointmentFolder.m
+++ b/SoObjects/Appointments/SOGoAppointmentFolder.m
@@ -84,12 +84,23 @@ static NSNumber   *sharedYes = nil;
 //                                        SOGoRole_Assistant, nil]
 //                 asDefaultForPermission: SoPerm_View];
 
-  sharedYes = [[NSNumber numberWithBool:YES] retain];
+  sharedYes = [[NSNumber numberWithBool: YES] retain];
+}
+
+- (id) initWithName: (NSString *) name
+	inContainer: (id) newContainer
+{
+  if ((self = [super initWithName: name inContainer: newContainer]))
+    {
+      timeZone = [[context activeUser] timeZone];
+    }
+
+  return self;
 }
 
 - (void) dealloc
 {
-  [self->uidToFilename release];
+  [uidToFilename release];
   [super dealloc];
 }
 
@@ -108,8 +119,7 @@ static NSNumber   *sharedYes = nil;
   NSString *s;
   
   s = [[self container] nameInContainer];
-#warning HH DEBUG
-  [self logWithFormat:@"CAL UID: %@", s];
+//   [self logWithFormat:@"CAL UID: %@", s];
   return [s isNotNull] ? [NSArray arrayWithObjects:&s count:1] : nil;
 }
 
@@ -237,7 +247,6 @@ static NSNumber   *sharedYes = nil;
 
 - (void) _appendComponentsMatchingFilters: (NSArray *) filters
                                toResponse: (WOResponse *) response
-                                inContext: (WOContext *) context
 {
   NSArray *apts;
   unsigned int count, max;
@@ -266,7 +275,7 @@ static NSNumber   *sharedYes = nil;
     }
 }
 
-- (id) davCalendarQuery: (id) context
+- (id) davCalendarQuery: (id) queryContext
 {
   WOResponse *r;
   NSArray *filters;
@@ -285,8 +294,7 @@ static NSNumber   *sharedYes = nil;
   document = [[context request] contentAsDOMDocument];
   filters = [self _parseCalendarFilters: [document documentElement]];
   [self _appendComponentsMatchingFilters: filters
-        toResponse: r
-        inContext: context];
+        toResponse: r];
   [r appendContentString:@"</D:multistatus>\r\n"];
 
   return r;
@@ -342,7 +350,6 @@ static NSNumber   *sharedYes = nil;
 }
 
 - (BOOL) requestNamedIsHandledLater: (NSString *) name
-                          inContext: (WOContext *) context
 {
   return [name isEqualToString: @"OPTIONS"];
 }
@@ -356,7 +363,7 @@ static NSNumber   *sharedYes = nil;
   BOOL handledLater;
 
   /* first check attributes directly bound to the application */
-  handledLater = [self requestNamedIsHandledLater: _key inContext: _ctx];
+  handledLater = [self requestNamedIsHandledLater: _key];
   if (handledLater)
     obj = nil;
   else
@@ -467,7 +474,7 @@ static NSNumber   *sharedYes = nil;
   
   if (![_uid isNotNull])
     return nil;
-  if ((rname = [self->uidToFilename objectForKey:_uid]) != nil)
+  if ((rname = [uidToFilename objectForKey:_uid]) != nil)
     return [rname isNotNull] ? rname : nil;
   
   if ((folder = [self ocsFolder]) == nil) {
@@ -476,13 +483,13 @@ static NSNumber   *sharedYes = nil;
     return nil;
   }
 
-  if (self->uidToFilename == nil)
-    self->uidToFilename = [[NSMutableDictionary alloc] initWithCapacity:16];
+  if (uidToFilename == nil)
+    uidToFilename = [[NSMutableDictionary alloc] initWithCapacity:16];
   
   if ((rname = [self resourceNameForEventUID:_uid inFolder:folder]) == nil)
-    [self->uidToFilename setObject:[NSNull null] forKey:_uid];
+    [uidToFilename setObject:[NSNull null] forKey:_uid];
   else
-    [self->uidToFilename setObject:rname forKey:_uid];
+    [uidToFilename setObject:rname forKey:_uid];
   
   return rname;
 }
@@ -527,7 +534,7 @@ static NSNumber   *sharedYes = nil;
   if ((tmp = [_record objectForKey:@"startdate"])) {
     tmp = [[NSCalendarDate alloc] initWithTimeIntervalSince1970:
           (NSTimeInterval)[tmp unsignedIntValue]];
-    [tmp setTimeZone: [self userTimeZone]];
+    [tmp setTimeZone: timeZone];
     if (tmp) [md setObject:tmp forKey:@"startDate"];
     [tmp release];
   }
@@ -537,7 +544,7 @@ static NSNumber   *sharedYes = nil;
   if ((tmp = [_record objectForKey:@"enddate"])) {
     tmp = [[NSCalendarDate alloc] initWithTimeIntervalSince1970:
           (NSTimeInterval)[tmp unsignedIntValue]];
-    [tmp setTimeZone: [self userTimeZone]];
+    [tmp setTimeZone: timeZone];
     if (tmp) [md setObject:tmp forKey:@"endDate"];
     [tmp release];
   }
@@ -557,15 +564,41 @@ static NSNumber   *sharedYes = nil;
   
   /* cycle is in _r */
   tmp = [_r startDate];
-  [tmp setTimeZone:[self userTimeZone]];
+  [tmp setTimeZone: timeZone];
   [md setObject:tmp forKey:@"startDate"];
   tmp = [_r endDate];
-  [tmp setTimeZone:[self userTimeZone]];
+  [tmp setTimeZone: timeZone];
   [md setObject:tmp forKey:@"endDate"];
   
   return md;
 }
 
+- (NSArray *) fixupRecords: (NSArray *) records
+                fetchRange: (NGCalendarDateRange *) r
+{
+  // TODO: is the result supposed to be sorted by date?
+  NSMutableArray *ma;
+  unsigned count, max;
+  id row; // TODO: what is the type of the record?
+
+  if (records)
+    {
+      max = [records count];
+      ma = [NSMutableArray arrayWithCapacity: max];
+      for (count = 0; count < max; count++)
+	{
+	  row = [self fixupRecord: [records objectAtIndex: count]
+		      fetchRange: r];
+	  if (row)
+	    [ma addObject: row];
+	}
+    }
+  else
+    ma = nil;
+
+  return ma;
+}
+
 - (void) _flattenCycleRecord: (NSDictionary *) _row
                     forRange: (NGCalendarDateRange *) _r
                    intoArray: (NSMutableArray *) _ma
@@ -611,28 +644,6 @@ static NSNumber   *sharedYes = nil;
   }
 }
 
-- (NSArray *) fixupRecords: (NSArray *) _records
-                fetchRange: (NGCalendarDateRange *) _r
-{
-  // TODO: is the result supposed to be sorted by date?
-  NSMutableArray *ma;
-  unsigned i, count;
-
-  if (_records == nil) return nil;
-  if ((count = [_records count]) == 0)
-    return _records;
-  
-  ma = [NSMutableArray arrayWithCapacity:count];
-  for (i = 0; i < count; i++) {
-    id row; // TODO: what is the type of the record?
-    
-    row = [_records objectAtIndex:i];
-    row = [self fixupRecord:row fetchRange:_r];
-    if (row != nil) [ma addObject:row];
-  }
-  return ma;
-}
-
 - (NSArray *) fixupCyclicRecords: (NSArray *) _records
                       fetchRange: (NGCalendarDateRange *) _r
 {
@@ -692,10 +703,8 @@ static NSNumber   *sharedYes = nil;
 - (NSString *) _privacySqlString
 {
   NSString *privacySqlString, *owner, *currentUser, *email;
-  WOContext *context;
   SOGoUser *activeUser;
 
-  context = [[WOApplication application] context];
   activeUser = [context activeUser];
   currentUser = [activeUser login];
   owner = [self ownerInContext: context];
@@ -876,10 +885,8 @@ static NSNumber   *sharedYes = nil;
   Class objectClass;
   unsigned int count, max;
   NSString *currentId, *currentUser;
-  WOContext *context;
   id deleteObject;
 
-  context = [[WOApplication application] context];
   currentUser = [[context activeUser] login];
 
   max = [ids count];
@@ -927,11 +934,9 @@ static NSNumber   *sharedYes = nil;
   if (![_uid isNotNull])
     return nil;
   
-  if (_ctx == nil) _ctx = [[WOApplication application] context];
-  
   /* create subcontext, so that we don't destroy our environment */
   
-  if ((ctx = [_ctx createSubContext]) == nil) {
+  if ((ctx = [context createSubContext]) == nil) {
     [self errorWithFormat:@"could not create SOPE subcontext!"];
     return nil;
   }
@@ -1166,7 +1171,7 @@ static NSNumber   *sharedYes = nil;
   return firstShouldBeActive;
 }
 
-- (NSArray *) calendarFoldersInContext: (WOContext *) context
+- (NSArray *) calendarFolders
 {
   NSMutableDictionary *userCalendar, *calendarDict;
   NSMutableArray *calendarFolders;
@@ -1177,7 +1182,6 @@ static NSNumber   *sharedYes = nil;
   [calendarFolders autorelease];
 
   activeUser = [context activeUser];
-
   userCalendar = [NSMutableDictionary new];
   [userCalendar autorelease];
   [userCalendar setObject: @"/" forKey: @"folder"];
diff --git a/SoObjects/Appointments/SOGoAppointmentObject.h b/SoObjects/Appointments/SOGoAppointmentObject.h
index 17e9b24b0..d6fe91e86 100644
--- a/SoObjects/Appointments/SOGoAppointmentObject.h
+++ b/SoObjects/Appointments/SOGoAppointmentObject.h
@@ -48,22 +48,18 @@
 
 /* folder management */
 
-- (id) lookupHomeFolderForUID: (NSString *) _uid inContext: (id)_ctx;
+- (id) lookupHomeFolderForUID: (NSString *) _uid
+		    inContext: (id) _ctx;
 - (NSArray *) lookupCalendarFoldersForUIDs: (NSArray *) _uids
                                  inContext: (id) _ctx;
 
 /* "iCal multifolder saves" */
 
-- (NSException *) saveContentString: (NSString *)_iCal
+- (NSException *) saveContentString: (NSString *) _iCal
                        baseSequence: (int) _v;
 - (NSException *) deleteWithBaseSequence: (int) _v;
-
 - (NSException *) saveContentString: (NSString *) _iCalString;
 
-- (NSException *) changeParticipationStatus: (NSString *) _status
-                                  inContext: (id) _ctx;
-
-
 @end
 
 #endif /* __Appointments_SOGoAppointmentObject_H__ */
diff --git a/SoObjects/Appointments/SOGoAppointmentObject.m b/SoObjects/Appointments/SOGoAppointmentObject.m
index 4fbebbdb0..ea76ffb2b 100644
--- a/SoObjects/Appointments/SOGoAppointmentObject.m
+++ b/SoObjects/Appointments/SOGoAppointmentObject.m
@@ -112,11 +112,8 @@
   NSEnumerator *e;
   id folder;
   NSException *allErrors = nil;
-  id ctx;
-
-  ctx = [[WOApplication application] context];
   
-  e = [[self lookupCalendarFoldersForUIDs:_uids inContext:ctx]
+  e = [[self lookupCalendarFoldersForUIDs:_uids inContext: context]
 	     objectEnumerator];
   while ((folder = [e nextObject]) != nil) {
     NSException           *error;
@@ -125,7 +122,7 @@
     if (![folder isNotNull]) /* no folder was found for given UID */
       continue;
 
-    apt = [folder lookupName: [self nameInContainer] inContext:ctx
+    apt = [folder lookupName: [self nameInContainer] inContext: context
 		  acquire: NO];
     if ([apt isKindOfClass: [NSException class]])
       {
@@ -160,17 +157,14 @@
   NSEnumerator *e;
   id folder;
   NSException *allErrors = nil;
-  id ctx;
   
-  ctx = [[WOApplication application] context];
-  
-  e = [[self lookupCalendarFoldersForUIDs:_uids inContext:ctx]
+  e = [[self lookupCalendarFoldersForUIDs:_uids inContext: context]
 	     objectEnumerator];
   while ((folder = [e nextObject])) {
     NSException           *error;
     SOGoAppointmentObject *apt;
     
-    apt = [folder lookupName:[self nameInContainer] inContext:ctx
+    apt = [folder lookupName:[self nameInContainer] inContext: context
 		  acquire:NO];
     if ([apt isKindOfClass: [NSException class]]) {
       [self logWithFormat: @"%@", [(NSException *) apt reason]];
@@ -428,57 +422,6 @@
   return [self saveContentString: _iCalString baseSequence: 0];
 }
 
-- (NSException *) changeParticipationStatus: (NSString *) _status
-                                  inContext: (id) _ctx
-{
-  iCalEvent *apt;
-  iCalPerson *p;
-  NSString *newContent;
-  NSException *ex;
-  NSString *myEMail;
-  
-  ex = nil;
-
-  // TODO: do we need to use SOGoAppointment? (prefer iCalEvent?)
-  apt = (iCalEvent *) [self component: NO];
-
-  if (apt)
-    {
-      myEMail = [[_ctx activeUser] email];
-      p = [apt findParticipantWithEmail: myEMail];
-      if (p)
-        {
-  // TODO: send iMIP reply mails?
-  
-          [p setPartStat:_status];
-          newContent = [[apt parent] versitString];
-          if (newContent)
-            {
-              ex = [self saveContentString:newContent];
-              if (ex)
-                // TODO: why is the exception wrapped?
-                /* Server Error */
-                ex = [NSException exceptionWithHTTPStatus: 500
-                                  reason: [ex reason]];
-            }
-          else
-            ex
-              = [NSException exceptionWithHTTPStatus: 500 /* Server Error */
-                             reason: @"Could not generate iCalendar data ..."];
-        }
-      else
-        ex = [NSException exceptionWithHTTPStatus: 404 /* Not Found */
-                          reason: @"user does not participate in this "
-                          @"appointment"];
-    }
-  else
-    ex = [NSException exceptionWithHTTPStatus:500 /* Server Error */
-                      reason:@"unable to parse appointment record"];
-
-  return ex;
-}
-
-
 /* message type */
 
 - (NSString *) outlookMessageClass
diff --git a/SoObjects/Appointments/SOGoFreeBusyObject.m b/SoObjects/Appointments/SOGoFreeBusyObject.m
index 5c86c19ae..b76cb819e 100644
--- a/SoObjects/Appointments/SOGoFreeBusyObject.m
+++ b/SoObjects/Appointments/SOGoFreeBusyObject.m
@@ -47,14 +47,17 @@
 - (NSString *) contentAsString
 {
   NSCalendarDate *today, *startDate, *endDate;
+  NSTimeZone *timeZone;
   
   today = [[NSCalendarDate calendarDate] beginOfDay];
-  [today setTimeZone: [self userTimeZone]];
+  timeZone = [[context activeUser] timeZone];
+  [today setTimeZone: timeZone];
 
   startDate = [today dateByAddingYears: 0 months: 0 days: -14
                      hours: 0 minutes: 0 seconds: 0];
   endDate = [startDate dateByAddingYears: 0 months: 1 days: 0
                        hours: 0 minutes: 0 seconds: 0];
+
   return [self contentAsStringFrom: startDate to: endDate];
 }
 
@@ -72,16 +75,13 @@
 {
   id calFolder;
   SoSecurityManager *sm;
-  WOApplication *woApp;
   NSArray *infos;
 
-  woApp = [WOApplication application];
-
   calFolder = [container lookupName: @"Calendar" inContext: nil acquire: NO];
   sm = [SoSecurityManager sharedSecurityManager];
   if (![sm validatePermission: SOGoPerm_FreeBusyLookup
            onObject: calFolder
-           inContext: [woApp context]])
+           inContext: context]])
     infos = [calFolder fetchFreeBusyInfosFrom: _startDate
                        to: _endDate];
   else
diff --git a/SoObjects/Appointments/SOGoGroupAppointmentFolder.m b/SoObjects/Appointments/SOGoGroupAppointmentFolder.m
index c154c5b30..099fdf4f4 100644
--- a/SoObjects/Appointments/SOGoGroupAppointmentFolder.m
+++ b/SoObjects/Appointments/SOGoGroupAppointmentFolder.m
@@ -130,10 +130,8 @@
   NSMutableArray      *result;
   NSMutableDictionary *uidToRecord;
   unsigned            i, count;
-  WOContext *context;
   SoSecurityManager *securityManager;
 
-  context = [[WOApplication application] context];
   securityManager = [SoSecurityManager sharedSecurityManager];
 
   folders = [[self container] memberFolders];
@@ -166,7 +164,7 @@
                          onObject: aptFolder
                          inContext: context]) {
       [self debugWithFormat:@"no permission to read the content of calendar: %@",
-	      [folders objectAtIndex:i]];
+	    [folders objectAtIndex:i]];
       continue;
     }
 
diff --git a/SoObjects/Appointments/SOGoTaskObject.h b/SoObjects/Appointments/SOGoTaskObject.h
index 234362633..9f57bf588 100644
--- a/SoObjects/Appointments/SOGoTaskObject.h
+++ b/SoObjects/Appointments/SOGoTaskObject.h
@@ -46,19 +46,17 @@
 
 /* folder management */
 
-- (id)lookupHomeFolderForUID:(NSString *)_uid inContext:(id)_ctx;
-- (NSArray *)lookupCalendarFoldersForUIDs:(NSArray *)_uids inContext:(id)_ctx;
+- (id) lookupHomeFolderForUID: (NSString *) _uid
+		    inContext: (id) _ctx;
+- (NSArray *) lookupCalendarFoldersForUIDs: (NSArray *) _uids
+				 inContext: (id) _ctx;
 
 /* "iCal multifolder saves" */
 
-- (NSException *)saveContentString:(NSString *)_iCal baseSequence:(int)_v;
-- (NSException *)deleteWithBaseSequence:(int)_v;
-
-- (NSException *)saveContentString:(NSString *)_iCalString;
-
-- (NSException *)changeParticipationStatus:(NSString *)_status
-                                 inContext:(id)_ctx;
-
+- (NSException *) saveContentString: (NSString *) _iCal
+		       baseSequence: (int) _v;
+- (NSException *) deleteWithBaseSequence: (int) _v;
+- (NSException *) saveContentString: (NSString *) _iCalString;
 
 @end
 
diff --git a/SoObjects/Appointments/SOGoTaskObject.m b/SoObjects/Appointments/SOGoTaskObject.m
index c364b922b..9f539b78f 100644
--- a/SoObjects/Appointments/SOGoTaskObject.m
+++ b/SoObjects/Appointments/SOGoTaskObject.m
@@ -121,6 +121,7 @@ static NSString                  *mailTemplateDefaultLanguage = nil;
   // TODO: what does this do? lookup the home of the organizer?
   return [[self container] lookupHomeFolderForUID:_uid inContext:_ctx];
 }
+
 - (NSArray *)lookupCalendarFoldersForUIDs:(NSArray *)_uids inContext:(id)_ctx {
   return [[self container] lookupCalendarFoldersForUIDs:_uids inContext:_ctx];
 }
@@ -131,11 +132,8 @@ static NSString                  *mailTemplateDefaultLanguage = nil;
   NSEnumerator *e;
   id           folder;
   NSException  *allErrors = nil;
-  id ctx;
 
-  ctx = [[WOApplication application] context];
-  
-  e = [[self lookupCalendarFoldersForUIDs:_uids inContext:ctx]
+  e = [[self lookupCalendarFoldersForUIDs: _uids inContext: context]
 	     objectEnumerator];
   while ((folder = [e nextObject]) != nil) {
     NSException           *error;
@@ -173,18 +171,16 @@ static NSString                  *mailTemplateDefaultLanguage = nil;
   NSEnumerator *e;
   id           folder;
   NSException  *allErrors = nil;
-  id           ctx;
   
-  ctx = [[WOApplication application] context];
-  
-  e = [[self lookupCalendarFoldersForUIDs:_uids inContext:ctx]
+  e = [[self lookupCalendarFoldersForUIDs: _uids inContext: context]
 	     objectEnumerator];
   while ((folder = [e nextObject])) {
     NSException           *error;
     SOGoTaskObject *task;
     
-    task = [folder lookupName:[self nameInContainer] inContext:ctx
-                   acquire:NO];
+    task = [folder lookupName: [self nameInContainer]
+		   inContext: context
+                   acquire: NO];
     if (![task isNotNull]) {
       [self logWithFormat:@"Note: did not find '%@' in folder: %@",
 	      [self nameInContainer], folder];
@@ -452,52 +448,6 @@ static NSString                  *mailTemplateDefaultLanguage = nil;
   return [self saveContentString:_iCalString baseSequence:0];
 }
 
-- (NSException *)changeParticipationStatus:(NSString *)_status
-  inContext:(id)_ctx
-{
-  iCalToDo *task;
-  iCalPerson      *p;
-  NSString        *newContent;
-  NSException     *ex;
-  NSString        *myEMail;
-  
-  // TODO: do we need to use SOGoTask? (prefer iCalToDo?)
-  task = (iCalToDo *) [self component: NO];
-
-  if (task == nil) {
-    return [NSException exceptionWithHTTPStatus:500 /* Server Error */
-                        reason:@"unable to parse task record"];
-  }
-  
-  myEMail = [[_ctx activeUser] email];
-  if ((p = [task findParticipantWithEmail:myEMail]) == nil) {
-    return [NSException exceptionWithHTTPStatus:404 /* Not Found */
-                        reason:@"user does not participate in this "
-                               @"task"];
-  }
-  
-  [p setPartStat:_status];
-  newContent = [[task parent] versitString];
-  
-  // TODO: send iMIP reply mails?
-  
-//   [task release]; task = nil;
-  
-  if (newContent == nil) {
-    return [NSException exceptionWithHTTPStatus:500 /* Server Error */
-                        reason:@"Could not generate iCalendar data ..."];
-  }
-  
-  if ((ex = [self saveContentString:newContent]) != nil) {
-    // TODO: why is the exception wrapped?
-    return [NSException exceptionWithHTTPStatus:500 /* Server Error */
-                        reason:[ex reason]];
-  }
-  
-  return nil /* means: no error */;
-}
-
-
 /* message type */
 
 - (NSString *)outlookMessageClass {
diff --git a/SoObjects/Contacts/SOGoContactFolders.m b/SoObjects/Contacts/SOGoContactFolders.m
index fb81bb53a..6e61cc675 100644
--- a/SoObjects/Contacts/SOGoContactFolders.m
+++ b/SoObjects/Contacts/SOGoContactFolders.m
@@ -169,7 +169,7 @@
     }
 }
 
-- (void) initContactSourcesInContext: (WOContext *) context;
+- (void) initContactSources
 {
   if (!contactFolders)
     {
@@ -180,18 +180,18 @@
 }
 
 - (id) lookupName: (NSString *) name
-        inContext: (WOContext *) context
+        inContext: (WOContext *) lookupContext
           acquire: (BOOL) acquire
 {
   id obj;
   id folder;
 
   /* first check attributes directly bound to the application */
-  obj = [super lookupName: name inContext: context acquire: NO];
+  obj = [super lookupName: name inContext: lookupContext acquire: NO];
   if (!obj)
     {
       if (!contactFolders)
-        [self initContactSourcesInContext: context];
+        [self initContactSources];
 
       folder = [contactFolders objectForKey: name];
       obj = ((folder)
@@ -204,32 +204,21 @@
 
 - (NSArray *) toManyRelationshipKeys
 {
-  WOContext *context;
-
   if (!contactFolders)
-    {
-      context = [[WOApplication application] context];
-      [self initContactSourcesInContext: context];
-    }
+    [self initContactSources];
 
   return [contactFolders allKeys];
 }
 
 - (NSArray *) contactFolders
 {
-  WOContext *context;
-
   if (!contactFolders)
-    {
-      context = [[WOApplication application] context];
-      [self initContactSourcesInContext: context];
-    }
+    [self initContactSources];
 
   return [contactFolders allValues];
 }
 
 - (NSString *) roleOfUser: (NSString *) uid
-                inContext: (WOContext *) context
 {
   NSArray *roles, *traversalPath;
   NSString *objectName, *role;
diff --git a/SoObjects/Contacts/SOGoContactLDAPFolder.m b/SoObjects/Contacts/SOGoContactLDAPFolder.m
index fb51aa20d..3338f05cc 100644
--- a/SoObjects/Contacts/SOGoContactLDAPFolder.m
+++ b/SoObjects/Contacts/SOGoContactLDAPFolder.m
@@ -281,7 +281,7 @@
 }
 
 - (id) lookupName: (NSString *) name
-        inContext: (WOContext *) context
+        inContext: (WOContext *) lookupContext
           acquire: (BOOL) acquire
 {
   id obj;
@@ -290,7 +290,7 @@
 //   NSLog (@"looking up name '%@'...", name);
 
   /* first check attributes directly bound to the application */
-  obj = [super lookupName: name inContext: context acquire: NO];
+  obj = [super lookupName: name inContext: lookupContext acquire: NO];
   if (!obj)
     {
       [self _loadEntries: name];
diff --git a/SoObjects/SOGo/SOGoContentObject.m b/SoObjects/SOGo/SOGoContentObject.m
index 3c7cc1a16..bfacb66ca 100644
--- a/SoObjects/SOGo/SOGoContentObject.m
+++ b/SoObjects/SOGo/SOGoContentObject.m
@@ -241,7 +241,6 @@
 
 /* security */
 - (NSArray *) rolesOfUser: (NSString *) login
-                inContext: (WOContext *) context
 {
   NSMutableArray *sogoRoles;
   SOGoUser *user;
diff --git a/SoObjects/SOGo/SOGoUserFolder.m b/SoObjects/SOGo/SOGoUserFolder.m
index d0d6a34eb..8664beeda 100644
--- a/SoObjects/SOGo/SOGoUserFolder.m
+++ b/SoObjects/SOGo/SOGoUserFolder.m
@@ -67,10 +67,10 @@
   return self;
 }
 
-- (SOGoGroupsFolder *) lookupGroupsFolder
-{
-  return [self lookupName: @"Groups" inContext: nil acquire: NO];
-}
+// - (SOGoGroupsFolder *) lookupGroupsFolder
+// {
+//   return [self lookupName: @"Groups" inContext: nil acquire: NO];
+// }
 
 /* pathes */
 
@@ -131,11 +131,11 @@
   return contacts;
 }
 
-- (id) groupsFolder: (NSString *) _key
-          inContext: (WOContext *) _ctx
-{
-  return [$(@"SOGoGroupsFolder") objectWithName: _key inContainer: self];
-}
+// - (id) groupsFolder: (NSString *) _key
+//           inContext: (WOContext *) _ctx
+// {
+//   return [$(@"SOGoGroupsFolder") objectWithName: _key inContainer: self];
+// }
 
 - (id) mailAccountsFolder: (NSString *) _key
                 inContext: (WOContext *) _ctx
@@ -168,12 +168,12 @@
         }
       else if ([_key isEqualToString: @"Contacts"])
         obj = [self privateContacts: _key inContext: _ctx];
-      else if ([_key isEqualToString: @"Groups"])
-        obj = [self groupsFolder: _key inContext: _ctx];
+//       else if ([_key isEqualToString: @"Groups"])
+//         obj = [self groupsFolder: _key inContext: _ctx];
       else if ([_key isEqualToString: @"Mail"])
         obj = [self mailAccountsFolder: _key inContext: _ctx];
       else if ([_key isEqualToString: @"freebusy.ifb"])
-        obj = [self freeBusyObject:_key inContext:_ctx];
+        obj = [self freeBusyObject:_key inContext: _ctx];
       else
         obj = [NSException exceptionWithHTTPStatus: 404 /* Not Found */];
     }
@@ -181,38 +181,38 @@
   return obj;
 }
 
-/* FIXME: here is a vault of hackish ways to gain access to subobjects by
-   granting ro access to the homepage depending on the subobject in question.
-   This is wrong and dangerous. */
-- (NSString *) roleOfUser: (NSString *) uid
-                inContext: (WOContext *) context
-{
-  NSArray *roles, *traversalPath;
-  NSString *objectName, *role;
+// /* FIXME: here is a vault of hackish ways to gain access to subobjects by
+//    granting ro access to the homepage depending on the subobject in question.
+//    This is wrong and dangerous. */
+// - (NSString *) roleOfUser: (NSString *) uid
+//                 inContext: (WOContext *) context
+// {
+//   NSArray *roles, *traversalPath;
+//   NSString *objectName, *role;
 
-  role = nil;
-  traversalPath = [context objectForKey: @"SoRequestTraversalPath"];
-  if ([traversalPath count] > 1)
-    {
-      objectName = [traversalPath objectAtIndex: 1];
-      if ([objectName isEqualToString: @"Calendar"]
-          || [objectName isEqualToString: @"Contacts"])
-        {
-          roles = [[context activeUser]
-                    rolesForObject: [self lookupName: objectName
-                                          inContext: context
-                                          acquire: NO]
-                    inContext: context];
-          if ([roles containsObject: SOGoRole_Assistant]
-              || [roles containsObject: SOGoRole_Delegate])
-            role = SOGoRole_Assistant;
-        }
-      else if ([objectName isEqualToString: @"freebusy.ifb"])
-        role = SOGoRole_Assistant;
-    }
+//   role = nil;
+//   traversalPath = [context objectForKey: @"SoRequestTraversalPath"];
+//   if ([traversalPath count] > 1)
+//     {
+//       objectName = [traversalPath objectAtIndex: 1];
+//       if ([objectName isEqualToString: @"Calendar"]
+//           || [objectName isEqualToString: @"Contacts"])
+//         {
+//           roles = [[context activeUser]
+//                     rolesForObject: [self lookupName: objectName
+//                                           inContext: context
+//                                           acquire: NO]
+//                     inContext: context];
+//           if ([roles containsObject: SOGoRole_Assistant]
+//               || [roles containsObject: SOGoRole_Delegate])
+//             role = SOGoRole_Assistant;
+//         }
+//       else if ([objectName isEqualToString: @"freebusy.ifb"])
+//         role = SOGoRole_Assistant;
+//     }
 
-  return role;
-}
+//   return role;
+// }
 
 /* WebDAV */
 
@@ -244,10 +244,8 @@
           collections itself. So for use its the home folder, the
 	  public folder and the groups folder.
   */
-  WOContext *context;
   NSArray *tag;
 
-  context = [[WOApplication application] context];
   tag = [NSArray arrayWithObjects: @"href", @"DAV:", @"D",
                  [self baseURLInContext: context], nil];
 
diff --git a/UI/MailPartViewers/UIxMailPartICalViewer.m b/UI/MailPartViewers/UIxMailPartICalViewer.m
index f8a0e549a..5a3285e10 100644
--- a/UI/MailPartViewers/UIxMailPartICalViewer.m
+++ b/UI/MailPartViewers/UIxMailPartICalViewer.m
@@ -154,19 +154,27 @@
   return self->item;
 }
 
-- (NSCalendarDate *)startTime {
+- (NSCalendarDate *) startTime
+{
   NSCalendarDate *date;
+  NSTimeZone *timeZone;
   
   date = [[self authorativeEvent] startDate];
-  [date setTimeZone:[[self clientObject] userTimeZone]];
+  timeZone = [[context activeUser] timeZone];
+  [date setTimeZone: timeZone];
+
   return date;
 }
 
-- (NSCalendarDate *)endTime {
+- (NSCalendarDate *) endTime
+{
   NSCalendarDate *date;
+  NSTimeZone *timeZone;
   
   date = [[self authorativeEvent] endDate];
-  [date setTimeZone:[[self clientObject] userTimeZone]];
+  timeZone = [[context activeUser] timeZone];
+  [date setTimeZone: timeZone];
+
   return date;
 }
 
diff --git a/UI/MainUI/SOGoUserHomePage.m b/UI/MainUI/SOGoUserHomePage.m
index 7731f9eaa..cbab37612 100644
--- a/UI/MainUI/SOGoUserHomePage.m
+++ b/UI/MainUI/SOGoUserHomePage.m
@@ -28,6 +28,7 @@
 #import <NGExtensions/NSCalendarDate+misc.h>
 
 #import <Appointments/SOGoFreeBusyObject.h>
+#import <SOGo/SOGoUser.h>
 #import <SOGo/NSCalendarDate+SOGo.h>
 #import <SOGoUI/UIxComponent.h>
 
@@ -112,9 +113,11 @@
   NSCalendarDate *startDate, *endDate;
   NSString *queryDay, *additionalDays;
   NSTimeZone *uTZ;
+  SOGoUser *user;
 
   co = [self clientObject];
-  uTZ = [co userTimeZone];
+  user = [context activeUser];
+  uTZ = [user timeZone];
 
   queryDay = [self queryParameterForKey: @"sday"];
   if ([queryDay length])
diff --git a/UI/MainUI/product.plist b/UI/MainUI/product.plist
index 6895273fe..8cca37cd0 100644
--- a/UI/MainUI/product.plist
+++ b/UI/MainUI/product.plist
@@ -17,13 +17,9 @@
     };
     SOGoUserFolder = {
       superclass  = "SOGoFolder";
+      protectedBy = "<public>";
+      defaultAccess = "allow";
       /* protectedBy = "HomePage Access"; */
-      defaultRoles = {
-        "Homepage Access" = ( "Owner", "Assistant", "Delegate", "FreeBusy" );
-        "WebDAV Access" = ( "Owner", "Assistant", "Delegate", "FreeBusy" );
-        "Access Contents Information" = ( "Owner", "Assistant", "Delegate",
-                                          "FreeBusy" );
-      };
     };
     SOGoFolder = {
       superclass    = "SOGoObject";
@@ -68,12 +64,6 @@
     SOGoRootPage = {
     };
     SOGoUserFolder = {
-      methods = {
-        view = { 
-          protectedBy = "View";
-          pageName    = "SOGoUserHomePage"; 
-        };
-      };
     };
     SOGoGroupsFolder = {
       methods = {
diff --git a/UI/SOGoUI/UIxComponent.m b/UI/SOGoUI/UIxComponent.m
index 0758c504b..1ac4b49f6 100644
--- a/UI/SOGoUI/UIxComponent.m
+++ b/UI/SOGoUI/UIxComponent.m
@@ -19,22 +19,25 @@
   02111-1307, USA.
 */
 
-#import "SOGoJSStringFormatter.h"
-#import "common.h"
-
+#import <Foundation/NSException.h>
+#import <Foundation/NSUserDefaults.h>
+#import <Foundation/NSKeyValueCoding.h>
 #import <NGObjWeb/SoHTTPAuthenticator.h>
+#import <NGObjWeb/SoObjects.h>
 #import <NGObjWeb/WOResourceManager.h>
-
-#import <SOGo/NSString+Utilities.h>
-
-#import <SOGo/SOGoUser.h>
-#import <SOGo/SOGoObject.h>
-#import <SOGo/SOGoCustomGroupFolder.h>
-#import <SOGo/NSCalendarDate+SOGo.h>
-
-#import "UIxJSClose.h"
+#import <NGObjWeb/WORequest.h>
+#import <NGObjWeb/WOContext+SoObjects.h>
+#import <NGExtensions/NSObject+Logs.h>
+#import <NGExtensions/NSString+misc.h>
+#import <NGExtensions/NSURL+misc.h>
+#import <SoObjects/SOGo/SOGoUser.h>
+#import <SoObjects/SOGo/SOGoObject.h>
+#import <SoObjects/SOGo/SOGoCustomGroupFolder.h>
+#import <SoObjects/SOGo/NSCalendarDate+SOGo.h>
+#import <SoObjects/SOGo/NSString+Utilities.h>
 
 #import "UIxComponent.h"
+#import "UIxJSClose.h"
 
 @interface UIxComponent (PrivateAPI)
 - (void)_parseQueryString:(NSString *)_s;
@@ -370,13 +373,16 @@ static BOOL uixDebugEnabled = NO;
 
 - (NSCalendarDate *) selectedDate
 {
+  NSTimeZone *userTimeZone;
+
   if (!_selectedDate)
     {
+      userTimeZone = [[context activeUser] timeZone];
       _selectedDate
         = [NSCalendarDate
             dateFromShortDateString: [self queryParameterForKey: @"day"]
             andShortTimeString: [self queryParameterForKey: @"hm"]
-            inTimeZone: [[self clientObject] userTimeZone]];
+            inTimeZone: userTimeZone];
       [_selectedDate retain];
     }
 
@@ -385,7 +391,10 @@ static BOOL uixDebugEnabled = NO;
 
 - (NSString *) dateStringForDate: (NSCalendarDate *) _date
 {
-  [_date setTimeZone: [[self clientObject] userTimeZone]];
+  NSTimeZone *userTimeZone;
+
+  userTimeZone = [[context activeUser] timeZone];
+  [_date setTimeZone: userTimeZone];
 
   return [_date descriptionWithCalendarFormat:@"%Y%m%d"];
 }
diff --git a/UI/Scheduler/UIxAppointmentEditor.m b/UI/Scheduler/UIxAppointmentEditor.m
index 17c12eaaa..3f1fa9b07 100644
--- a/UI/Scheduler/UIxAppointmentEditor.m
+++ b/UI/Scheduler/UIxAppointmentEditor.m
@@ -249,13 +249,15 @@
 - (NSCalendarDate *) newStartDate
 {
   NSCalendarDate *newStartDate, *now;
+  NSTimeZone *timeZone;
   int hour;
 
   newStartDate = [self selectedDate];
   if ([[self queryParameterForKey: @"hm"] length] == 0)
     {
       now = [NSCalendarDate calendarDate];
-      [now setTimeZone: [[self clientObject] userTimeZone]];
+      timeZone = [[context activeUser] timeZone];
+      [now setTimeZone: timeZone];
       if ([now isDateOnSameDay: newStartDate])
         {
           hour = [now hourOfDay];
@@ -365,23 +367,23 @@
 
 // TODO: add tentatively
 
-- (id) acceptOrDeclineAction: (BOOL) _accept
+- (id) acceptOrDeclineAction: (BOOL) accept
 {
-  [[self clientObject] changeParticipationStatus:
-                         _accept ? @"ACCEPTED" : @"DECLINED"
-                       inContext: [self context]];
+  [[self clientObject] changeParticipationStatus: (accept
+						   ? @"ACCEPTED"
+						   : @"DECLINED")];
 
   return self;
 }
 
 - (id) acceptAction
 {
-  return [self acceptOrDeclineAction:YES];
+  return [self acceptOrDeclineAction: YES];
 }
 
 - (id) declineAction
 {
-  return [self acceptOrDeclineAction:NO];
+  return [self acceptOrDeclineAction: NO];
 }
 
 @end
diff --git a/UI/Scheduler/UIxAppointmentProposal.m b/UI/Scheduler/UIxAppointmentProposal.m
index 978a03146..f81d87eba 100644
--- a/UI/Scheduler/UIxAppointmentProposal.m
+++ b/UI/Scheduler/UIxAppointmentProposal.m
@@ -170,30 +170,44 @@
   [self setStartDateMonth:[NSNumber numberWithInt:[_date monthOfYear]]];
   [self setStartDateYear:[NSNumber numberWithInt:[_date yearOfCommonEra]]];
 }
-- (NSCalendarDate *)startDate {
+
+- (NSCalendarDate *) startDate
+{
+  NSTimeZone *timeZone;
+
+  timeZone = [[context activeUser] timeZone];
+
   return [NSCalendarDate dateWithYear:[[self startDateYear] intValue]
 			 month:[[self startDateMonth] intValue]
 			 day:[[self startDateDay] intValue]
 			 hour:[[self startDateHour] intValue]
 			 minute:[[self startDateMinute] intValue]
 			 second:0
-			 timeZone:[[self clientObject] userTimeZone]];
+			 timeZone: timeZone];
 }
-- (void)setEndDate:(NSCalendarDate *)_date {
+
+- (void) setEndDate: (NSCalendarDate *) _date
+{
   [self setEndDateHour:[NSNumber numberWithInt:[_date hourOfDay]]];
   [self setEndDateMinute:[NSNumber numberWithInt:[_date minuteOfHour]]];
   [self setEndDateDay:[NSNumber numberWithInt:[_date dayOfMonth]]];
   [self setEndDateMonth:[NSNumber numberWithInt:[_date monthOfYear]]];
   [self setEndDateYear:[NSNumber numberWithInt:[_date yearOfCommonEra]]];
 }
-- (NSCalendarDate *)endDate {
+
+- (NSCalendarDate *) endDate
+{
+  NSTimeZone *timeZone;
+
+  timeZone = [[context activeUser] timeZone];
+
   return [NSCalendarDate dateWithYear:[[self endDateYear] intValue]
 			 month:[[self endDateMonth] intValue]
 			 day:[[self endDateDay] intValue]
 			 hour:[[self endDateHour] intValue]
 			 minute:[[self endDateMinute] intValue]
 			 second:59
-			 timeZone:[[self clientObject] userTimeZone]];
+			 timeZone: timeZone];
 }
 
 - (void)setDuration:(id)_duration {
@@ -273,28 +287,31 @@
   // TODO: from startdate to enddate
   NSMutableArray *ma;
   NSCalendarDate *base, *stop, *current;
-  
+  NSTimeZone *timeZone;
+
+  timeZone = [[context activeUser] timeZone];
   base = [NSCalendarDate dateWithYear:[[self startDateYear] intValue]
 			 month:[[self startDateMonth] intValue]
 			 day:[[self startDateDay] intValue]
 			 hour:12 minute:0 second:0
-			 timeZone:[[self clientObject] userTimeZone]];
+			 timeZone: timeZone];
   stop = [NSCalendarDate dateWithYear:[[self endDateYear] intValue]
 			 month:[[self endDateMonth] intValue]
 			 day:[[self endDateDay] intValue]
 			 hour:12 minute:0 second:0
-			 timeZone:[[self clientObject] userTimeZone]];
-  
-  ma = [NSMutableArray arrayWithCapacity:16];
+			 timeZone: timeZone];
+  ma = [NSMutableArray arrayWithCapacity: 16];
   
   current = base;
-  while ([current compare:stop] != NSOrderedDescending) {
-    [current setTimeZone:[[self clientObject] userTimeZone]];
-    [ma addObject:current];
+  while ([current compare:stop] != NSOrderedDescending)
+    {
+      [current setTimeZone: timeZone];
+      [ma addObject:current];
     
     /* Note: remember the timezone behaviour of the method below! */
-    current = [current dateByAddingYears:0 months:0 days:1];
-  }
+      current = [current dateByAddingYears:0 months:0 days:1];
+    }
+
   return ma;
 }
 
@@ -323,6 +340,7 @@
 - (BOOL)isSlotRangeGreen:(NGCalendarDateRange *)_slotRange {
   NGCalendarDateRange *aptRange;
   NSCalendarDate *aptStartDate, *aptEndDate;
+  NSTimeZone *timeZone;
 
   if (_slotRange == nil)
     return NO;
@@ -334,8 +352,9 @@
   aptEndDate   = [[NSCalendarDate alloc] initWithTimeIntervalSince1970:
 					   [aptStartDate timeIntervalSince1970]
 					 + [self durationAsTimeInterval]];
-  [aptStartDate setTimeZone:[[self clientObject] userTimeZone]];
-  [aptEndDate   setTimeZone:[[self clientObject] userTimeZone]];
+  timeZone = [[context activeUser] timeZone];
+  [aptStartDate setTimeZone: timeZone];
+  [aptEndDate   setTimeZone: timeZone];
   aptRange = [NGCalendarDateRange calendarDateRangeWithStartDate:aptStartDate
 				  endDate:aptEndDate];
   [aptEndDate release]; aptEndDate = nil;
diff --git a/UI/Scheduler/UIxAppointmentView.h b/UI/Scheduler/UIxAppointmentView.h
index 0eaf48e47..a7f4a20dc 100644
--- a/UI/Scheduler/UIxAppointmentView.h
+++ b/UI/Scheduler/UIxAppointmentView.h
@@ -18,22 +18,22 @@
   id item;
 }
 
-- (iCalEvent *)appointment;
+- (iCalEvent *) appointment;
 
 /* permissions */
-- (BOOL)canAccessApt;
-- (BOOL)canEditApt;
+- (BOOL) canAccessApt;
+- (BOOL) canEditApt;
   
-- (SOGoDateFormatter *)dateFormatter;
-- (NSCalendarDate *)startTime;
-- (NSCalendarDate *)endTime;
+- (SOGoDateFormatter *) dateFormatter;
+- (NSCalendarDate *) startTime;
+- (NSCalendarDate *) endTime;
   
-- (NSString *)attributesTabLink;
-- (NSString *)participantsTabLink;
+- (NSString *) attributesTabLink;
+- (NSString *) participantsTabLink;
 
-- (NSString *)completeHrefForMethod:(NSString *)_method
-  withParameter:(NSString *)_param
-  forKey:(NSString *)_key;
+- (NSString *) completeHrefForMethod: (NSString *) _method
+		       withParameter: (NSString *) _param
+			      forKey: (NSString *) _key;
 
 @end
 
diff --git a/UI/Scheduler/UIxAppointmentView.m b/UI/Scheduler/UIxAppointmentView.m
index d1aeb4267..8adb3a9b5 100644
--- a/UI/Scheduler/UIxAppointmentView.m
+++ b/UI/Scheduler/UIxAppointmentView.m
@@ -97,17 +97,23 @@
 
 - (NSCalendarDate *)startTime {
   NSCalendarDate *date;
-    
+  NSTimeZone *timeZone;
+
+  timeZone = [[context activeUser] timeZone];
   date = [[self appointment] startDate];
-  [date setTimeZone:[[self clientObject] userTimeZone]];
+  [date setTimeZone: timeZone];
+
   return date;
 }
 
 - (NSCalendarDate *)endTime {
   NSCalendarDate *date;
-  
+  NSTimeZone *timeZone;
+
+  timeZone = [[context activeUser] timeZone];
   date = [[self appointment] endDate];
-  [date setTimeZone:[[self clientObject] userTimeZone]];
+  [date setTimeZone: timeZone];
+
   return date;
 }
 
diff --git a/UI/Scheduler/UIxCalAptListView.m b/UI/Scheduler/UIxCalAptListView.m
index 5da22d549..92d227d8f 100644
--- a/UI/Scheduler/UIxCalAptListView.m
+++ b/UI/Scheduler/UIxCalAptListView.m
@@ -129,7 +129,7 @@
   date = [NSCalendarDate dateWithTimeIntervalSince1970:
                            [[currentAppointment objectForKey: @"startdate"]
                              intValue]];
-  [date setTimeZone: [[self clientObject] userTimeZone]];
+  [date setTimeZone: timeZone];
 
   return [[self itemDateFormatter] stringForObjectValue: date];
 }
@@ -141,7 +141,7 @@
   date = [NSCalendarDate dateWithTimeIntervalSince1970:
                            [[currentAppointment objectForKey: @"enddate"]
                              intValue]];
-  [date setTimeZone: [[self clientObject] userTimeZone]];
+  [date setTimeZone: timeZone];
 
   return [[self itemDateFormatter] stringForObjectValue: date];
 }
@@ -158,7 +158,7 @@
 
   intDate = [[currentAppointment objectForKey: @"startdate"] intValue];
   date = [NSCalendarDate dateWithTimeIntervalSince1970: intDate];
-  [date setTimeZone: [[self clientObject] userTimeZone]];
+  [date setTimeZone: timeZone];
 
   return [NSString stringWithFormat: @"%d%.2d%.2d",
                    [date yearOfCommonEra],
@@ -173,7 +173,7 @@
 
   intDate = [[currentAppointment objectForKey: @"startdate"] intValue];
   date = [NSCalendarDate dateWithTimeIntervalSince1970: intDate];
-  [date setTimeZone: [[self clientObject] userTimeZone]];
+  [date setTimeZone: timeZone];
 
   return [NSString stringWithFormat: @"%.2d%.2d",
                    [date hourOfDay],
diff --git a/UI/Scheduler/UIxCalDateSelector.m b/UI/Scheduler/UIxCalDateSelector.m
index 6ab548c85..bfb2efc1f 100644
--- a/UI/Scheduler/UIxCalDateSelector.m
+++ b/UI/Scheduler/UIxCalDateSelector.m
@@ -33,7 +33,7 @@
 - (void) setSelectedDate: (NSCalendarDate *) _date
 {
   ASSIGN (selectedDate, _date);
-  [selectedDate setTimeZone: [[self clientObject] userTimeZone]];
+  [selectedDate setTimeZone: timeZone];
 }
 
 - (NSCalendarDate *) selectedDate
diff --git a/UI/Scheduler/UIxCalMonthView.m b/UI/Scheduler/UIxCalMonthView.m
index e5c82ecde..53bd5a757 100644
--- a/UI/Scheduler/UIxCalMonthView.m
+++ b/UI/Scheduler/UIxCalMonthView.m
@@ -36,14 +36,10 @@
 
 - (id) init
 {
-  NSTimeZone *tz;
-
   if ((self = [super init]))
     {
-      tz = [[self clientObject] userTimeZone];
- 
       monthAptFormatter
-        = [[SOGoAptFormatter alloc] initWithDisplayTimeZone: tz];
+        = [[SOGoAptFormatter alloc] initWithDisplayTimeZone: timeZone];
       [monthAptFormatter setShortMonthTitleOnly];
       dateFormatter = [[SOGoDateFormatter alloc]
                         initWithLocale: [self locale]];
diff --git a/UI/Scheduler/UIxCalView.h b/UI/Scheduler/UIxCalView.h
index 133674ce1..cd5059290 100644
--- a/UI/Scheduler/UIxCalView.h
+++ b/UI/Scheduler/UIxCalView.h
@@ -17,6 +17,7 @@
 @class NSDictionary;
 @class NSMutableDictionary;
 @class NSString;
+@class NSTimeZone;
 
 @class SOGoAptFormatter;
 @class SOGoAppointmentFolder;
@@ -29,6 +30,7 @@
   NSArray *allDayApts;
   id appointment;
   NSCalendarDate *currentDay;
+  NSTimeZone *timeZone;
   SOGoAptFormatter *aptFormatter;
   SOGoAptFormatter *aptTooltipFormatter;
   SOGoAptFormatter *privateAptFormatter;
diff --git a/UI/Scheduler/UIxCalView.m b/UI/Scheduler/UIxCalView.m
index 48534781b..1f9c8277b 100644
--- a/UI/Scheduler/UIxCalView.m
+++ b/UI/Scheduler/UIxCalView.m
@@ -43,17 +43,16 @@ static BOOL shouldDisplayWeekend = NO;
   self = [super init];
   if (self)
     {
-      NSTimeZone *tz;
-
-      tz = [[self clientObject] userTimeZone];
+      timeZone = [[context activeUser] timeZone];
+      [timeZone retain];
       aptFormatter
-        = [[SOGoAptFormatter alloc] initWithDisplayTimeZone: tz];
+        = [[SOGoAptFormatter alloc] initWithDisplayTimeZone: timeZone];
       aptTooltipFormatter
-        = [[SOGoAptFormatter alloc] initWithDisplayTimeZone: tz];
+        = [[SOGoAptFormatter alloc] initWithDisplayTimeZone: timeZone];
       privateAptFormatter
-        = [[SOGoAptFormatter alloc] initWithDisplayTimeZone: tz];
+        = [[SOGoAptFormatter alloc] initWithDisplayTimeZone: timeZone];
       privateAptTooltipFormatter
-        = [[SOGoAptFormatter alloc] initWithDisplayTimeZone: tz];
+        = [[SOGoAptFormatter alloc] initWithDisplayTimeZone: timeZone];
       [self configureFormatters];
       componentsData = [NSMutableDictionary new];
     }
@@ -72,6 +71,7 @@ static BOOL shouldDisplayWeekend = NO;
   [aptTooltipFormatter release];
   [privateAptFormatter release];
   [privateAptTooltipFormatter release];
+  [timeZone release];
   [super dealloc];
 }
 
@@ -322,8 +322,8 @@ static BOOL shouldDisplayWeekend = NO;
 
 - (void) setCurrentDay:(NSCalendarDate *) _day
 {
-  [_day setTimeZone: [[self clientObject] userTimeZone]];
-  ASSIGN(currentDay, _day);
+  [_day setTimeZone: timeZone];
+  ASSIGN (currentDay, _day);
 }
 
 - (NSCalendarDate *) currentDay
@@ -478,8 +478,7 @@ static BOOL shouldDisplayWeekend = NO;
 
   clientObject = [self clientObject];
 
-  folders = [[clientObject calendarFoldersInContext: context]
-	      objectEnumerator];
+  folders = [[clientObject calendarFolders] objectEnumerator];
   currentFolderDict = [folders nextObject];
   while (currentFolderDict)
     {
diff --git a/UI/Scheduler/UIxCalendarSelector.m b/UI/Scheduler/UIxCalendarSelector.m
index d28e94847..5903aecbf 100644
--- a/UI/Scheduler/UIxCalendarSelector.m
+++ b/UI/Scheduler/UIxCalendarSelector.m
@@ -112,8 +112,7 @@ colorForNumber (unsigned int number)
   NSDictionary *currentFolder;
   unsigned int count;
 
-  calendarFolders
-    = [[self clientObject] calendarFoldersInContext: context];
+  calendarFolders = [[self clientObject] calendarFolders];
   if (!colors)
     {
       colors = [NSMutableDictionary new];
diff --git a/UI/Scheduler/UIxComponentEditor.m b/UI/Scheduler/UIxComponentEditor.m
index 11258889a..d3cbdd89c 100644
--- a/UI/Scheduler/UIxComponentEditor.m
+++ b/UI/Scheduler/UIxComponentEditor.m
@@ -310,8 +310,7 @@
     {
       calendarList = [NSMutableArray new];
       folder = [[self clientObject] container];
-      allCalendars
-	= [[folder calendarFoldersInContext: context] objectEnumerator];
+      allCalendars = [[folder calendarFolders] objectEnumerator];
       currentCalendar = [allCalendars nextObject];
       while (currentCalendar)
 	{
@@ -743,7 +742,7 @@
 
   co = [self clientObject];
   if (![co
-         respondsToSelector: @selector(changeParticipationStatus:inContext:)])
+         respondsToSelector: @selector(changeParticipationStatus:)])
     return [NSException exceptionWithHTTPStatus:400 /* Bad Request */
                         reason:
                           @"method cannot be invoked on the specified object"];
diff --git a/UI/Scheduler/UIxTaskEditor.m b/UI/Scheduler/UIxTaskEditor.m
index 4a34ac6bd..360cdf019 100644
--- a/UI/Scheduler/UIxTaskEditor.m
+++ b/UI/Scheduler/UIxTaskEditor.m
@@ -290,12 +290,15 @@
 {
   NSCalendarDate *newStartDate, *now;
   int hour;
+  NSTimeZone *timeZone;
+
+  timeZone = [[context activeUser] timeZone];
 
   newStartDate = [self selectedDate];
   if ([[self queryParameterForKey: @"hm"] length] == 0)
     {
       now = [NSCalendarDate calendarDate];
-      [now setTimeZone: [[self clientObject] userTimeZone]];
+      [now setTimeZone: timeZone];
       if ([now isDateOnSameDay: newStartDate])
         {
           hour = [now hourOfDay];
@@ -434,20 +437,19 @@
 - (id) acceptOrDeclineAction: (BOOL) _accept
 {
   [[self clientObject] changeParticipationStatus:
-                         _accept ? @"ACCEPTED" : @"DECLINED"
-                       inContext: [self context]];
+                         _accept ? @"ACCEPTED" : @"DECLINED"];
 
   return self;
 }
 
 - (id) acceptAction
 {
-  return [self acceptOrDeclineAction:YES];
+  return [self acceptOrDeclineAction: YES];
 }
 
 - (id) declineAction
 {
-  return [self acceptOrDeclineAction:NO];
+  return [self acceptOrDeclineAction: NO];
 }
 
 - (id) changeStatusAction
diff --git a/UI/Scheduler/UIxTaskProposal.m b/UI/Scheduler/UIxTaskProposal.m
index c558ccdd2..bdd092d02 100644
--- a/UI/Scheduler/UIxTaskProposal.m
+++ b/UI/Scheduler/UIxTaskProposal.m
@@ -170,30 +170,44 @@
   [self setStartDateMonth:[NSNumber numberWithInt:[_date monthOfYear]]];
   [self setStartDateYear:[NSNumber numberWithInt:[_date yearOfCommonEra]]];
 }
-- (NSCalendarDate *)startDate {
+
+- (NSCalendarDate *) startDate
+{
+  NSTimeZone *timeZone;
+
+  timeZone = [[context activeUser] timeZone];
+  
   return [NSCalendarDate dateWithYear:[[self startDateYear] intValue]
 			 month:[[self startDateMonth] intValue]
 			 day:[[self startDateDay] intValue]
 			 hour:[[self startDateHour] intValue]
 			 minute:[[self startDateMinute] intValue]
 			 second:0
-			 timeZone:[[self clientObject] userTimeZone]];
+			 timeZone: timeZone];
 }
-- (void)setEndDate:(NSCalendarDate *)_date {
+
+- (void) setEndDate: (NSCalendarDate *) _date
+{
   [self setEndDateHour:[NSNumber numberWithInt:[_date hourOfDay]]];
   [self setEndDateMinute:[NSNumber numberWithInt:[_date minuteOfHour]]];
   [self setEndDateDay:[NSNumber numberWithInt:[_date dayOfMonth]]];
   [self setEndDateMonth:[NSNumber numberWithInt:[_date monthOfYear]]];
   [self setEndDateYear:[NSNumber numberWithInt:[_date yearOfCommonEra]]];
 }
-- (NSCalendarDate *)endDate {
+
+- (NSCalendarDate *) endDate
+{
+  NSTimeZone *timeZone;
+
+  timeZone = [[context activeUser] timeZone];
+
   return [NSCalendarDate dateWithYear:[[self endDateYear] intValue]
 			 month:[[self endDateMonth] intValue]
 			 day:[[self endDateDay] intValue]
 			 hour:[[self endDateHour] intValue]
 			 minute:[[self endDateMinute] intValue]
 			 second:59
-			 timeZone:[[self clientObject] userTimeZone]];
+			 timeZone: timeZone];
 }
 
 - (void)setDuration:(id)_duration {
@@ -269,32 +283,36 @@
   return ma;
 }
 
-- (NSArray *)days {
+- (NSArray *) days
+{
   // TODO: from startdate to enddate
   NSMutableArray *ma;
-  NSCalendarDate *base, *stop, *current;
-  
-  base = [NSCalendarDate dateWithYear:[[self startDateYear] intValue]
-			 month:[[self startDateMonth] intValue]
-			 day:[[self startDateDay] intValue]
-			 hour:12 minute:0 second:0
-			 timeZone:[[self clientObject] userTimeZone]];
-  stop = [NSCalendarDate dateWithYear:[[self endDateYear] intValue]
-			 month:[[self endDateMonth] intValue]
-			 day:[[self endDateDay] intValue]
-			 hour:12 minute:0 second:0
-			 timeZone:[[self clientObject] userTimeZone]];
+  NSCalendarDate *base, *stop, *current;  
+  NSTimeZone *timeZone;
+
+  timeZone = [[context activeUser] timeZone];
+  base = [NSCalendarDate dateWithYear: [[self startDateYear] intValue]
+			 month: [[self startDateMonth] intValue]
+			 day: [[self startDateDay] intValue]
+			 hour: 12 minute: 0 second: 0
+			 timeZone: timeZone];
+  stop = [NSCalendarDate dateWithYear: [[self endDateYear] intValue]
+			 month: [[self endDateMonth] intValue]
+			 day: [[self endDateDay] intValue]
+			 hour: 12 minute: 0 second: 0
+			 timeZone: timeZone];
   
   ma = [NSMutableArray arrayWithCapacity:16];
   
   current = base;
   while ([current compare:stop] != NSOrderedDescending) {
-    [current setTimeZone:[[self clientObject] userTimeZone]];
+    [current setTimeZone: timeZone];
     [ma addObject:current];
     
     /* Note: remember the timezone behaviour of the method below! */
     current = [current dateByAddingYears:0 months:0 days:1];
   }
+
   return ma;
 }
 
@@ -320,27 +338,32 @@
   return idx == NSNotFound ? YES : NO;
 }
 
-- (BOOL)isSlotRangeGreen:(NGCalendarDateRange *)_slotRange {
+- (BOOL)isSlotRangeGreen: (NGCalendarDateRange *) _slotRange
+{
   NGCalendarDateRange *aptRange;
   NSCalendarDate *aptStartDate, *aptEndDate;
+  NSTimeZone *timeZone;
 
   if (_slotRange == nil)
     return NO;
-  
+
+  timeZone = [[context activeUser] timeZone];  
   /* calculate the interval requested by the user (can be larger) */
 
   aptStartDate = [_slotRange startDate];
   // TODO: gives warning on MacOSX
-  aptEndDate   = [[NSCalendarDate alloc] initWithTimeIntervalSince1970:
-					   [aptStartDate timeIntervalSince1970]
-					 + [self durationAsTimeInterval]];
-  [aptStartDate setTimeZone:[[self clientObject] userTimeZone]];
-  [aptEndDate   setTimeZone:[[self clientObject] userTimeZone]];
-  aptRange = [NGCalendarDateRange calendarDateRangeWithStartDate:aptStartDate
-				  endDate:aptEndDate];
-  [aptEndDate release]; aptEndDate = nil;
+  aptEndDate
+    = [[NSCalendarDate alloc]
+	initWithTimeIntervalSince1970: ([aptStartDate timeIntervalSince1970]
+					+ [self durationAsTimeInterval])];
+  [aptStartDate setTimeZone: timeZone];
+  [aptEndDate setTimeZone: timeZone];
+  aptRange = [NGCalendarDateRange calendarDateRangeWithStartDate: aptStartDate
+				  endDate: aptEndDate];
+  [aptEndDate release];
+  aptEndDate = nil;
   
-  return [self isRangeGreen:aptRange];
+  return [self isRangeGreen: aptRange];
 }
 
 - (BOOL)isFirstHalfGreen {
diff --git a/UI/Scheduler/UIxTaskView.m b/UI/Scheduler/UIxTaskView.m
index c2004dd85..323034134 100644
--- a/UI/Scheduler/UIxTaskView.m
+++ b/UI/Scheduler/UIxTaskView.m
@@ -95,19 +95,27 @@
   return dateFormatter;
 }
 
-- (NSCalendarDate *)startTime {
+- (NSCalendarDate *) startTime
+{
   NSCalendarDate *date;
-    
+  NSTimeZone *timeZone;
+
+  timeZone = [[context activeUser] timeZone];
   date = [[self task] startDate];
-  [date setTimeZone:[[self clientObject] userTimeZone]];
+  [date setTimeZone: timeZone];
+
   return date;
 }
 
-- (NSCalendarDate *)endTime {
+- (NSCalendarDate *) endTime
+{
   NSCalendarDate *date;
-  
+  NSTimeZone *timeZone;
+
+  timeZone = [[context activeUser] timeZone];
   date = [[self task] due];
-  [date setTimeZone:[[self clientObject] userTimeZone]];
+  [date setTimeZone: timeZone];
+
   return date;
 }
 
diff --git a/UI/Scheduler/UIxTimeDateControl.m b/UI/Scheduler/UIxTimeDateControl.m
index a18640d0c..22de5971c 100644
--- a/UI/Scheduler/UIxTimeDateControl.m
+++ b/UI/Scheduler/UIxTimeDateControl.m
@@ -69,12 +69,15 @@
   return label;
 }
 
-- (void)setDate:(NSCalendarDate *)_date {
-  NSLog (@"^^^^^^ %@: setDate: %@", self, _date);
+- (void) setDate: (NSCalendarDate *) _date
+{
+  NSTimeZone *timeZone;
   int minuteValue;
+
+  timeZone = [[context activeUser] timeZone];
   if (!_date)
     _date = [NSCalendarDate date];
-  [_date setTimeZone: [[self clientObject] userTimeZone]];
+  [_date setTimeZone: timeZone];
   [self _setDate: _date];
 
   minuteValue = [_date minuteOfHour];
@@ -251,8 +254,9 @@
 {
   NSCalendarDate *d;
   unsigned _year, _month, _day, _hour, _minute, _second;
+  NSTimeZone *timeZone;
 
-  NSLog (@"******************** %@: take values...", self);
+  timeZone = [[context activeUser] timeZone];
   /* call super, so that the form values are applied on the popups */
   [super takeValuesFromRequest:_rq inContext:_ctx];
 
@@ -270,7 +274,7 @@
       
       d = [NSCalendarDate dateWithYear: _year month:_month day:_day
                           hour:_hour minute:_minute second:_second
-                          timeZone: [[self clientObject] userTimeZone]];
+                          timeZone: timeZone];
       [self _setDate: d];
     }
 }
diff --git a/UI/Templates/SchedulerUI/UIxCalMonthOverview.wox b/UI/Templates/SchedulerUI/UIxCalMonthOverview.wox
deleted file mode 100644
index 795e5f79d..000000000
--- a/UI/Templates/SchedulerUI/UIxCalMonthOverview.wox
+++ /dev/null
@@ -1,216 +0,0 @@
-<?xml version="1.0" standalone="yes"?>
-<var:component xmlns="http://www.w3.org/1999/xhtml"
-               xmlns:var="http://www.skyrix.com/od/binding"
-               xmlns:const="http://www.skyrix.com/od/constant"
-               xmlns:rsrc="OGo:url"
-               xmlns:label="OGo:label"
-               className="UIxPageFrame"
-               title="name"
->
-
-    <table id="skywintable"
-      class="wintable"
-      cellspacing="0"
-      cellpadding="5"
-      width="100%"
-      >
-      <tr>
-        <td class="window_label">
-          <var:component className="UIxCalDateLabel"
-            startDate="startDate"
-            endDate="endDate"
-            const:selection="month"
-            />
-        </td>
-    </tr>
-    <tr>
-      <td id="skywinbodycell" class="wincontent">
-        <table border="0" cellpadding="0" cellspacing="0" width="100%">
-          <tr bgcolor="#e8e8e0">
-            <td align="left">
-              <var:component className="UIxCalBackForthNavView"
-                             methodName="ownMethodName"
-                             prevQueryParameters="prevMonthQueryParameters"
-                             currentQueryParameters="todayQueryParameters"
-                             nextQueryParameters="nextMonthQueryParameters"
-                             label:label="this month"
-              />
-            </td>
-            <td align="right" valign="middle" width="80%">
-                <var:component className="UIxContactSelector"
-                  const:selectorId="uids" />
-<!--              <var:component className="AnaisUidSelector"
-                             calendarUIDs="clientObject.calendarUIDs"
-              /> -->
-            </td>
-          </tr>
-        </table>
-      </td>
-    </tr>
-    <tr>
-      <td id="skywinbodycell" class="wincontent">
-        <table border="0" width="100%" cellpadding="0" cellspacing="0">
-          <tr>
-            <td colspan="2">
-              <var:component className="UIxCalSelectTab"
-                             const:selection="month"
-                             currentDate="selectedDate"
-              >
-                <table border="0" cellpadding="4" width="100%" cellspacing="2">
-                  <tr>
-                    <td align="left" bgcolor="#e8e8e0" class="button_auto_env">
-                      <a var:href="ownMethodName"
-                         class="button_auto"
-                         var:queryDictionary="toggleShowRejectedAptsQueryParameters"
-                         label:string="$toggleShowRejectedAptsLabel"
-                      />
-                    </td>
-                    <td align="right" bgcolor="#e8e8e0">
-                      <table border="0" cellpadding="0" cellspacing="1">
-                        <tr>
-                          <td class="button_auto_env"
-                              nowrap="true"
-                              valign="middle"
-                              align="center"
-                          >
-                            <!--<a class="button_auto"
-                               href="monthprintview"
-                               var:queryDictionary="queryParameters"
-                               target="SOGoPrintView"
-                            ><var:string label:value="printview"/></a>-->
-                          </td>
-                          <td class="button_auto_env"
-                              nowrap="true"
-                              valign="middle"
-                              align="center"
-                          >
-                            <a class="button_auto"
-                               href="proposal"
-                               var:queryDictionary="queryParameters"
-                            ><var:string label:value="proposal"/></a>
-                          </td>
-                        </tr>
-                      </table>
-                    </td>
-                  </tr>
-                </table>
-                <var:month-overview list="appointments"
-                                    item="appointment"
-                                    currentDay="currentDay"
-                                    index="dayIndex"
-                                    year="year"
-                                    month="month"
-                                    const:startDateKey="startDate"
-                                    const:endDateKey="endDate"
-                                    const:class="monthoverview"
-                                    contentStyle="contentStyle"
-                                    const:width="100%"
-                >
-                  <var:month-info>
-                    <var:if condition="hasHolidayInfo">
-                      <var:string value="holidayInfo"
-                                  const:class="monthoverview_holidayinfo"
-                      />
-                    </var:if>
-                    <var:foreach list="allDayApts" item="appointment">
-                      <var:component className="UIxCalInlineAptView"
-                                     appointment="appointment"
-                                     formatter="aptFormatter"
-                                     tooltipFormatter="aptTooltipFormatter"
-                                     url="appointmentViewURL"
-                                     const:style="monthoverview"
-                                     referenceDate="currentDay"
-                                     canAccess="canAccessApt"
-                      />
-                      <br />
-                    </var:foreach>
-                  </var:month-info>
-                  <var:month-label const:orientation="top"
-                                   dayOfWeek="dayOfWeek"
-                                   const:class="monthoverview_title"
-                  >
-                    <var:string value="localizedDayOfWeekName"/>
-                  </var:month-label>
-                  <var:month-label const:orientation="left"
-                                   weekOfYear="weekOfYear"
-                                   class="weekStyle"
-                  >
-                    <a href="weekoverview"
-                       var:queryDictionary="currentWeekQueryParameters"
-                    ><var:string value="weekOfYear"/></a>
-                  </var:month-label>
-                  <var:month-title class="contentStyle">
-                    <span class="monthoverview_day">
-                      <a href="dayoverview"
-                         var:queryDictionary="currentDayQueryParameters"
-                      ><var:string value="currentDay.dayOfMonth"/></a>
-                    </span>
-                    <!-- removed for 0.8
-                     <br/>
-                    <span class="monthoverview_day_new">
-                      <a href="new"
-                         var:queryDictionary="currentDayQueryParameters"
-                      >[<var:string label:value="new"/>]</a>
-                    </span>-->
-                  </var:month-title>
-                  <var:month class="contentStyle">
-                    <var:component className="UIxCalInlineAptView"
-                                   appointment="appointment"
-                                   formatter="aptFormatter"
-                                   tooltipFormatter="aptTooltipFormatter"
-                                   url="appointmentViewURL"
-                                   const:style="monthoverview"
-                                   referenceDate="currentDay"
-                                   canAccess="canAccessApt"
-                    />
-                    <br />
-                  </var:month>
-                </var:month-overview>
-              </var:component>
-            </td>
-          </tr>
-          <tr bgcolor="#F5F5E9">
-            <td align="left" width="10">
-              <var:entity const:name="nbsp"/>
-            </td>
-            <td align="right">
-              <img border="0"
-                   alt=""
-                   rsrc:src="corner_right.gif"
-              />
-            </td>
-          </tr>
-          <tr>
-            <td colspan="2" bgcolor="#F5F5E9">
-              <table border="0" width="100%" cellpadding="10" cellspacing="0">
-                <tr/>
-              </table>
-            </td>
-          </tr>
-        </table>
-      </td>
-    </tr>
-  </table>
-  <!--
-  <hr />
-  start: <var:string value="startDate" /><br />
-  end: <var:string value="endDate" /><br />
-  -->
-  <!--
-  SOGo Server - <var:string value="name"/>
-  <br />
-  Client: <var:string value="clientObject"/>
-  <br />
-  Appointments: #<var:string value="appointments.count"/>
-  from <var:string value="startDate" />
-  to   <var:string value="endDate" />
-  <br />
-
-
-  <hr />
-
-  Appointments: 
-  <var:component className="UIxAptTableView" appointments="appointments"/>
-  -->
-<!-- pre><var:string value="appointments" const:insertBR="YES"/></pre -->
-</var:component>