The 8800GT upgrade for the "old" Mac Pro arrived yesterday. Since then I've seen problem after problem. I hope I can return it, I'm really unhappy. To start with, when I started up Halo I noticed that the bounding boxes around objects would periodically show on screen. Not badly, but annoying. And some of the tiling is off. But then today I notice that the color palette of the desktop is going disco on me. It's just two colors of the thousands, so it's almost invisible. But very worrying nonetheless. And now it's getting louder. The fan is definitely spooling up, and for the first time I can actually hear my machine. Does anyone else have this thing yet? Am I just the unlucky guy that got a bum card?