Numerous files downloaded from BitTorrent, all "shake" or vibrate enough to keep me from viewing, out of annoyance. WMP and Kazaa AVI preview play it fine, but it shakes. Divx plays it with the shakes, but upside down, dunno wtf that's about. And quicktime won't play it. I have the Radeon 9800 video card, installed with drivers, newest version of WMP and still no luck. Anyone had any problems like this?