I just bought this receiver and hooked everything up correctly. I get sound from all the speakers but the receiver shuts down when I play it at higher volumes so I ran a firm update to see if that was the problem which it was not. I then tried to run an automatic setup for the speakers with the mic and when it got to my rear surround speaker, the receiver shuts itself down again when it gets to the third pulse. Does anyone have any ideas on what this could be and how to fix it?