The Premiere constantly outputs DD5.1 on the optical output, even for channels that aren't putting out 5.1...is this the Premiere or the software update? And I get the sound dropout thing also, most pronounced when the video 'moves' from fullscreen to window or back. The FF/REW all the way to the front or back of the buffer happens mostly on the MusicChoice channels. Of course, these things happen to me. YMMV.