I don't know if I have a defective unit or if it is simply user error. I've got 5.1 set up and working fine for my Main Zone. I'm trying to connect two more speakers (the 3805 has 7 amplifiers) in an adjacent room. I've connected them to the last speaker posts, Surround Back/MultiZone. In System Setup, I've changed the Amplifier Assign to Zone 2 (also tried Zone 3). I've used the Zone 2/3/Rec Select button to assign the CD to both Zone 2 and 3. Unfortunately, I get no audio to the speakers. I do get audio to the Main Zone if I select CD for its input. Any ideas of what I might be doing wrong? Thanks in advance.