Hi, I have just bought a brand new MacBook Pro 1.86ghz 80gb and I am mightily impressed. I have downloaded various codecs (ie to play xvid, .avi's etc) but for some reason when I play them through VLC player the video playback is very stuttery and grainy. Has anyone encountered this problem, if so how to resolve? It is noth the quality of the media files I have because I have seen them played on a friends PC laptop and the quality was very good and sharp. Perhaps I need some Intel specific codecs... Any suggestions, because I do not doubdt the MacBooks performance, I think it just needs tweaking to play these files correctly. Thanks!