I began experiencing the lip-synch issues as well after watching just a couple of DVD's. Stopping it and restarting has helped, but then I adjusted the audio setup on the player(I run it solely through my surround sound reciever). Since then I've watched at least a half-dozen movies and have yet to experience the problem again. If it recurs , I will be sure to send it back. Now that the sound problem has gone away, this component is the crown-jewel of my home theater! I am quite pleased with the sound and picture quality... and absoultely in love with the format.