UPDATE: problem has been solved after rolling down to 9.5 (at least no crashes so far after some minor testing). Thanks to all those that helped. I guess I was too used to the nvidia drivers which never actually gave me any problems, only performance differences. Didn't think changing drivers would help at all! Hope this can help someone else as well. Hello. I recently purchased a Powercolor HD 4850 that is not using the stock reference design. It can be located here. The problem I am having with it is fairly strange. I have tried both Windows 7 RC1 build 7100 64bit and XP professional with sp3 and the problem occurs in both settings. I can play any 3d games fine as long as it is in full screen mode. However, I have problems with having anything 3d in windowed mode. folding@home's 3d view, Crysis/L4D running in windowed mode, or even Aero in Windows 7 will frequently crash my video driver. If in xp, it may produce some artifacts on the screen like when you overclocked too much when the driver crashes. The temperature of the card is relatively low. GPU-Z reports 61c for the card temp with 61-63c for the core, shader, and memory. I would like to know if there is anything I can do to remedy the problem. Is it a hardware issue? Driver? Or perhaps even bios? I am not sure why it would work flawlessly in 3d mode while have problems with 3d on 2d. By the way, the card idles at 500/993 at 1.05v (voltage according to hardware monitor). Thanks for anyone who can help me out with this strange problem.