Well, I was using the Nvidia drivers... I've always stood by them, and yes, I do have the Gigabyte card.

I had been tweaking it with the vtuner and was running about 400/700 core/ram settings.

The interesting thing was that I actually found the problem that caused all of this when I was messing around this afternoon. Ready for a wild one?

SIMCITY4

Yeah. Fantastic. So I went to their website and found that they had an update available that... guess what... fixed a memory corruption error which is exactly what was happening to me. I downloaded the patch and everything has been fine since.