I am not getting any sound on my zone 2 speakers with the 3808 on digital sources (HDMI). When I use the tuner it works fine. Any ideas? One of the reason I got the 3808 was its ability to play digital sources on zone 2 and 3 (a feature listed on Denon's website). My only thought is that maybe if the connection is digital is must be coax or optical but that doesnt make a lot sense.