Anyone got an idea what's causing this on my GTX570? Temps seem fine according to Speedfan (<70°C loaded). This is a card cooled by Accelero custom cooler, never had issues. Got the latest drivers installed. Very annoying. Problem occurs within minutes after starting the game, again making me doubt this is a heat issue.
Sidenote: I've also noticed lately that youtube movies tend to show blocks like a poorly encoded video, this seems to occur very randomly. Maybe related?