Jens could you please verify the registry hack, specifically the key in your post?
"HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows NT\CurrentVersion\Winlogon" with registry value "SyncForegroundPolicy"=dword:00000001
there is not such key on our XP computers. Did you mean:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon
