I have a Yamaha RXV-1400RDS. I've had for about a month, but until now it's been installed in a temporary location with just two front speakers and a sub while the main roo was being renovated. Yesterday, I installed it in the main room. I am not getting any sound from the surround or surround back speakers. These speakers do work when using YPAO (which operated without fail), and also when using the test tones. However, playing any movie soundtrack, Dolby Pro-logic II, etc, I get no sound from the rear speakers. This is also the case using the internal tuner. When I play a multi-channel SACD using by Pioneer DV-575, I select the multi-channel input, and only get sound from the front two speakers (ie - not even the sub). Am I missing something here, or is it faulty (I hope it's not the latter, as the packaging has long since gone !).