User blog comment:Kwiksilver/HELP ME, WINDOWS USERS!!!/@comment-1950792-20101025012551

I once had a dead graphics card, it was a defect that had accidentally rolled off of the assembly line. My advice is to get a new one. I switched from a AMD HD 5770 to a Nvidia GTS 450 and I highly recommend it, but if you have more money go for the Nvidia GTX 460, which is more powerful.