I not so recently bought a Gainward 6800GT video card off of a local retailer. The other night I was playing through a game which was pretty demanding graphically. I saw no problems while playing exept for my case being a little bit hot (I have a temp gauge on the outside of my case). After I get done playing demanding games my case usually cools down quite quickly, after the cool down I shut my computer off for the night then woke up that next morning and turned my pc on to find a sleeping monitor (everything on the inside of pc was running just how it always has mind you, nothing was dead as in not running. Even the 6800 was running like it always has, just no picture.). I thought maybe this was a driver issue so I tried serveral kinds including the factory drivers. I would have thought if I had a overheat on my video it would have shut itself down before any harm came too it. The weird thing is that I had no auto shut down, I shut my pc off myself and it was working fine. Anyone have any tips for me? Thanks a bunch.