First, try disabling Fast Writes in your BIOS. Next, try installing the latest drivers only after uninstalling the previous set of drivers. Next, try getting any OS updates that are available to you. Next, try updating your BIOS. Next, try updating your chipset drivers. If none of this solves your problem, I would suggest trying to get ahold of another video card and trying it out before buying a different one. Make sure the problem lies in the video card itself and not some incompatibility or something related to another component. If all else failes, try RMAing the card. See what it does for you. If all else fails, and that fails, then try a format of your HDD. That will do wonders.