Hope someone can help me figure this out. I have a Yamaha HTR5750 and a Dish Network DVR522 sat receiver. I have been unable to get any Dolby Digital decoding at all out of the sat receiver, only the PCM and 2 channel indicators light up on the Yamaha panel. I do get true 5.1 decoding from the DVD player and Xbox, so I know the Yamaha is working. I made sure the input mode for the sat receiver is set to digital and all the connections are correct. Dish Network replaced the sat receiver once already (2 in less than a month). Any ideas?