Hi, My Graphic Card : GeForce 8800 GTS A few days ago, my screen froze. After that, every time I restart, the screen looks like this: img444.imageshack.us/img444/3276/dscn3858m.jpg These lines disappear when windows starts to load. I tried reinstalling drivers, but it doesn't work. They just disappear, as if they're not installed, and the computer acts as if they aren't there. I tried system restore, no improvement. A fresh windows install didn't work either. Dxdiag doesn't recognize any driver: img18.imageshack.us/img18/206/91562842.png Yesterday, I removed the video card and cleaned it up of dust. When I re-attached it, the problem was solved and I could install drivers. But today it happened again. Removing and re-attaching doesn't seem to work anymore, and even if it did, it's really inconvenient. I'm out of ideas. Is there anyone who can help? Thanks. PS: sorry about the bad links, I can't post actual links because of my post count.