I have perian installed. Was playing a xvid ac3 avi and right at the beginning for about a second it plays sound then goes dead silent. Now you can push the curser to take you to any point during the movie and it plays sounds for about 1 seconds then stops making sound. Works fine in VLC. But I never had this issue with SL. Anybody got any ideas? I don't have flip4mac or divx installed. A) I don't use WMV B) Divx is part of perian anyway right?