Solved by running a factory reset + mic optimizing test I'm using a xbox 360 and a yamaha rx-v861, I also have a Samsung D8000 series TV. Everything is hooked up with HDMI cables. My problem is I only get sound from my 2 front speakers when I'm in Dolby Digital. As soon as I switch to ie. music enhancer 7ch I get sound from all my speakers. Does this make sense for any of you guys??