I have read several issues relating to fullscreen playback and flickering with WinXP and QuickTime - hopefully this isn't a duplicate post.
When I playback a QuickTime movie in Jitter the jit.pwindow, the contents of the patch, and the icons on the Windows desktop (!?!) flicker.
I have an ATI X1800 All in Wonder graphics card and have tried several different setting there as well as the Direct Draw settings in QuickTime. I've also experimented with the performance options in Max.
Any ideas on this one?