Handbreaked some stuff to be played with my appleTV. The files are 600mb-1Gb files (720x480?) with one pass deinterlace. The problem is that when i am playing them with my macpro, i get a white flicker when trying to play them full screen.Like a white strobo. When resizing the window smaller, they develope a black flicker... Only when doing playback in a smaller window (1/4 of the screensize) they play back normally. Display is a 30",so is my 7300Gs such a useless p.o.s or what is going on? Anyone?