I have got a few movies that I have downloaded and they are very glitchy while in full screen. And it seems that the audio and video seem to loose sync. I have closed ALL programs that run and I have changed the screen res to the lowest. That seems to help. Is it my video card??? or RAM?? But I have 1.5 gigs of that... I hope there is a setting... and not get a new video card... oh yeah I am using Quicktime i duno if thats important