I recently purchased 2 X GV-R587UD-1GD to replace my 2 4870x2 that I'm selling to friends, I'm having the following 2 problems : 1- (Major issue) I can not run any high Def. movie on my PC any more, the PC will lockup then BSOD. 2- (not so major) In Bad Company 2 I keep getting horizontal lines across the screen, like the lines you see when you cam cord a CRT monitor. Only Bad Company 2 shows this, I tried some other games but they work fine. I'm using 10.3a and also tried 10.2 but the same problem. Thx.