I'm having some weird problems with my graphics in games. This has happened in both WoW and Quake Wars: Enemy Territory this week. I've already cleaned out the old drivers and reloaded new ones, as well as DirectX. I've also tested my RAM and it comes up clean. The graphics will distort as shown below:

and

I'm running an Nvidia 7600 GT with an Intel Core 2 Duo processor and 4GB of RAM.
Ideas as to what to check next?
Thanks!
casefan

and

I'm running an Nvidia 7600 GT with an Intel Core 2 Duo processor and 4GB of RAM.
Ideas as to what to check next?
Thanks!
casefan