I have several clients who connect through remote desktop to my Server 2003 and most of them work all day long with very few glitches, but a couple of them experience what I call a Stall. They minimize their desktop to do some other work and when they come back, the window is locked up. They can minimize the screen no problem, but if they hit the X to close it, nothing happens. If they hit the X and then minimize it, the RDP session closes and no problem. What is causing the stall and how can I fix it?