There are several of those questions that I will have to look into when I get back home today. I do know that I have C.ST.EX as one of the settings available to me. Actually, I have A-C available. As well as NORM.SURR and others. Most of my stereo components are hooked up via RCA cable to their indie inputs in the back. The DVD player is hooked up via RCA as well only because it's an older model DVD player that didn't have RGB or optical available. My RGB ready DVD player is hooked up in the bedroom only because it is a single disc player whereas this older one is a five-disc changer and is nicer to use with the stereo for CDs and/or DVDs loaded at the same time (my wife prefers this).

However, I did do some reconfiguring and did get sound out of both rear speakers now. However, the receiver only recognizes them as one lump Surround setting instead of allowing me to configure each one as its own speaker (surround left and surround right). But at least they now have sound. That is a step in the right direction.

Also, the Google ads are pretty smart. When I opened up this thread to type this message, the ad was for Orb Audio. Not bad.