I got a new NVIDIA 8600 Geforce GT video card but I have some problems with it. When I'm playing garry's mod it does this weird thing, here is screenshot:http://img41.imageshack.us/img41/4655/vcprobl.png
I don't think it's overheating because I've increased fan speed and underclocked it but nothing changed. Help!!! It's SOOO annoying because I can only play for about 10-20 minutes before it does this. Also if I change settings from high to medium for about 5 minutes it'll work then it'll do it again. And if I rejoin it'll work for another 5 minutes.
