Oppo problem solved. Feels good to be able to hear my rear speakers again. They said the server board went bad somehow. They were extremely apologetic and they took care of the problem in 4 days. they paid for shipping both ways, updated my software, and gave me a courtesy call to make sure everything was alright after i hooked the system up again. Aside from making a great product, the customer service was awesome. I would definitely Go oppo again in the future.