I use a GTX 460. I had heard about the driver problem before and tried reverting back. Still kept crashing. I wonder if it was on FFXIV's end, because I didn't have this issue until 2.1 dropped. That's when it started happening.

That said, I've done some testing. I just played until I crashed using HWMonitor to watch my temperatures. GPU maxed out at about 76 c, which is pretty low. I don't think overheating is the issue, unless the card got damaged some other way that I'm not aware of. This is getting to be so frustrating lol.