Hello guys..... ive been having problems with playing avi files on quicktime for about a month now. It was alright before.. then suddenly, Quicktime couldn't play avi as smooth anymore. It takes a long time to load, and the video is choppy and laggy. Ive tried it with numerous avi files... but the problem is still there! Now im using VLC to view my avi files which works fine. But i just wanna know how to get my quicktime working the way it was before.