The noteworthy Liz Landry contributes:
Just wanted to let you know that I found out this morning that the newer Nvidia drivers are having problems with Remote Desktop and causing the computer to lock up and have to be hard booted. The fix is as follows:
HKLM\SYSTEM\CurrentControlSet\Control\Session Manager\Memory Management
Add a DWORD and call it:
SessionImageSize
Set it to hex size 20.
Then reboot and use RDP. There should no longer be problems with the computer locking up.