If you are haveing that many problems then it is time to move on to a new manufacture. The avr-65 is supposed to be a top notch piece. I am now happy that I passed on it for a YAMAHA DSP-AMP1. Not THX, but can run 4 ohm loads with no problem. I currently am running front L,R, & c at 4 ohms. The surrounds are running at 3 ohms. Rock solid performer for the past 7 months.