iCloud Internet Explorer bookmark sync Win7 x64 not working...

iCloud is not able to sync my Internet Explorer Bookmarks.

I have not changed the favorites folder.

c:\Users\UserXXX\Favorites\

Access to icloud.com is possible (IE and Firefox).

I checked Firewall settings.

Tried to run

c:\Program Files (x86)\Common Files\Apple\Internet Services\BookmarkDAV_client.exe

with Admin rights...

No success.

I have seen errors in Logfile:

c:\Users\UserXXX\AppData\Roaming\Apple Computer\Logs\asl.191555_25Jan13.log

[1992 @ Fri Jan 25 19:55:35 2013] [Exceptions BookmarkDAV_client.exe] BADatabaseCreate: caught Win32 error 17 exception on line 2316 of file .\InternetExplorerClientDatabaseAccess.cpp;

thrown from function IEBA_WriteAppleDirectoryInfo on line 1987 of file .\InternetExplorerBookmarkAccess.cpp; stack trace:

LibRainfall.dll 0x70C1B1F9 Rainfall::Exceptions::ThrowWin32ErrorFunc+0x69

InternetExplorerBookmarkDAV.dll 0x60AC66BF (error 487)

InternetExplorerBookmarkDAV.dll 0x60AC6EFA (error 487)

InternetExplorerBookmarkDAV.dll 0x60AC74A8 (error 487)

InternetExplorerBookmarkDAV.dll 0x60ACCE7B (error 487)

InternetExplorerBookmarkDAV.dll 0x60AD8D9B (error 487)

InternetExplorerBookmarkDAV.dll 0x60AD90AB BADatabaseCreate+0xBB

BookmarkDAV_client_main.dll 0x704942BC BookmarkDAVClient_CopySaveFailure+0x133C

BookmarkDAV_client_main.dll 0x70489908 (error 487)

CoreDAV.dll 0x5F81AEE7 (error 487)

CoreDAV.dll 0x5F836367 CDVLog+0x7957

CoreDAV.dll 0x5F842EC4 CDVLog+0x144B4

[1992 @ Fri Jan 25 19:56:36 2013] [Exceptions BookmarkDAV_client.exe] IEBA_WriteAppleDirectoryInfo: throwing exception due to Win32 error 17 on line 1987 of file .\InternetExplorerBookmarkAccess.cpp

[1992 @ Fri Jan 25 19:56:36 2013] [Exceptions BookmarkDAV_client.exe] BADatabaseCreate: caught Win32 error 17 exception on line 2316 of file .\InternetExplorerClientDatabaseAccess.cpp;

thrown from function IEBA_WriteAppleDirectoryInfo on line 1987 of file .\InternetExplorerBookmarkAccess.cpp; stack trace:

LibRainfall.dll 0x70C1B1F9 Rainfall::Exceptions::ThrowWin32ErrorFunc+0x69

InternetExplorerBookmarkDAV.dll 0x60AC66BF (error 487)

InternetExplorerBookmarkDAV.dll 0x60AC6EFA (error 487)

InternetExplorerBookmarkDAV.dll 0x60AC74A8 (error 487)

InternetExplorerBookmarkDAV.dll 0x60ACCE7B (error 487)

InternetExplorerBookmarkDAV.dll 0x60AD8D9B (error 487)

InternetExplorerBookmarkDAV.dll 0x60AD90AB BADatabaseCreate+0xBB

BookmarkDAV_client_main.dll 0x704942BC BookmarkDAVClient_CopySaveFailure+0x133C

BookmarkDAV_client_main.dll 0x70489908 (error 487)

CoreDAV.dll 0x5F81AEE7 (error 487)

CoreDAV.dll 0x5F836367 CDVLog+0x7957

CoreDAV.dll 0x5F842EC4 CDVLog+0x144B4

Anyone have a clue ?