I just bought a copy of vista ultimate x64 and installed it, updated all the graphics drivers, downloaded all the vista updates and restarted. After about a few restarts into vista It would not start. After the vista boot screen it displayed a screen full of black, white and gray squares and would not go any farther. What would cause this? Bad video drivers. I got the 169.28 graphics drivers for vista x64 which is the newest out. Thanks in advance for your help.