Crysric

I'm having a graphical problem with the viewer where it runs perfectly fine normally, but when I quit, my whole screen turns into a mixture of rainbow colors that can't be fixed without a reboot. Anyone know what the problem might be? My graphics card is a NVIDIA NVS 5100M, and I know that my drivers are definitely up to date, given that I just recently updated them. Here's a picture of what my screen looks like after logging out. http://img535.imageshack.us/img535/754/imag0009ka.jpg