This is a strange one for me. My rig is a MSI 750i Platinum Motherboard, Q9450 @3.00Ghz, 4 Gigs Ram, 500Gb Harddrive, and a 4870X2. The issue I'm having is the one stated in the topic. Every time I try to run a video in full screen from the internet (Youtube, Google video, Zero Punctuation, wherever) the screen gets lines across it. Kinda hard to explain, but think static where you can still see the picture. This happens after a random, but short, period of time, usually under a minute. If I continue to let the video play in full screen, the PC BSOD's on me, with the ATI Kernal program as the specified error. If I take the video out of Fullscreen, the PC doesn't crash, but the mouse, and all icons associated with the mouse are tweaked. Think 2 ghost mice. Anyone else have this issue, or can anyone think of a fix for it?