Whenever I preview Movies, TV Shows, or Music Videos in the iTunes Music Store, it's very choppy. The music plays great during the Videos, but the video itself is very choppy and I can see the lines (looks like it's refreshing slow). At first I thought it was my X800XL, so I ran 3DMark05 and other tests and it looks great getting around ~5900. And the video in 3DMark05 ran smooth. I tried lowering the overclock as well as the stock clocks and still the same choppy video (in iTunes) When playing games, it works great as well with excellent frame rate in Source games. I re-installed Catalyst 7.2 then 7.3 and still the same problems. When I ran the "Scan for Artifacts" in ATI Tool, it found no artifacts. But when I clicked "Show 3D View", the Fuzzy Box was choppy when spinning around. What could be causing this?