When a user launches a Remote Desktop session, his host computer, which is Windows XP SP3, freezes up. It is a new and powerful Dell machine, and it does not matter whether we launch Remote Desktop from outside the network, or inside the network. Could this be a problem with Symantec Endpoint Protection? What else could be causing this? We have a pretty standard network configuration, and I have never had any problems with Remote Dekstop before (my users are successful with it all the time). We can cause this problem launching Remote Desktop from either Vista or XP.