Does anyone know how to play AVI files that have the ac3 audio componant? I get a great picture but no sound. I have already tried to install the ac3 codec and my Mac mini crashes everytime. One more question, to try to sidestep this problem I would like to make Windows Media Player my default player and I can't figure out how to do it! It won't play AVI files. Someone help! I just want to play my torrents (TV shows and movies) and get sound! Thanks!