Speaking of overheating, run HWMonitor
. Make sure you run it as an admin if you're on Windows Vista/7 by right clicking on it and selecting "Run as Administrator". If you're using Windows XP, you can just run it as is.
If your video card is approaching somewhere along the lines of 80-90C, it's cooling is buggered.
I'm running the hardware monitor you recommended, but I don't actually see the temperature of my video card. I see the motherboard has two temps on it (TMPIN0 & TMPIN1), the processor has a temp for each core, and the hard drive is reporting an assembly and an air flow temp.
Is there something I need to do to see the video card temp?