Hey all, i bought a new HP computer 1 month ago, with Windows Vista on it. I then made a clean install with Windows 7 Upgrade. SO as the topic says, each time i start a Game on Windows 7 and play for a while, it then starts to freeze and pixelate. I can still hear the sound from the game in about 5 seconds but after that even my computer screen goes black.. The computer is still on it seems, but nothing is really happening! So i manually need to turn it off by holding in the power button. It then ask's me if i want to run in Safe Mode (Which i don't). It doesn't make a difference if i run my games with "XP Mode SP2", and all my NVidia drivers are up to date. When it's not crashing, it works just fine and it's a very fast and good computer. Any ideas why this is happening?