I have a X6700H I have been very happy with for 5 years. About a month ago there was a upgrade and I took it. Everything has been fine until about a week ago and the unit keeps changing audio formats and I went in to reset it back to factory and now after speaker set up where it sees and test my fronts when it comes to doing Audessy it says I have no front speakers. I can jack with it and get it running then do something like raise the volume and it goes into silent mode again. Boat Anchor? If so what else to buy?