I had jester7677's issue tonight as well. I was listening to 2-channel music (I have totally shifted my ratio of movies 95% music 5% to more like 50/50 now due to the excellent 2-channel performance of the unit. Every time I pop in a CD from my collection, it is like hearing something for the first time with the details I never knew were there. I think my wife is under the impression I am going through a mid-life crisis or something and trying to recapture my youth through loud music, but I just can't get over the performance of this unit). When I switched to a movie in the same DVD player and started watching the THX trailer at the beginning of Toy Story 2 I had all channels but left and right which surprised me as I thought I would still be in Upsample mode if anything. After hitting the Dolby button on the remote, the R/L channels came right back. Minor issue in my opinion, but you would think it is also easily fixable via an update.