Initiating a remote desktop session from Windows 7 to a Win XP Pro or a Win 2k3 Server machine freezes. After entering the credentials the Windows welcome screen freezes after 1/3 of the screen has build up, resulting in a time-out error message. Making the same connection from within a Win XP machine just works fine. After changing some RDP-settings, sometimes the connection fully establishes but this is not reproducable. Making the same connection from within a Win XP machine just works fine. A compatibility problem with RDP client???