I just received my new 970 yesterday and started to set up the input levels, etc. When I tried to play my "Take Five", Dave Brubeck Columbia cd through the digital coaxial input, it could not play it in straight stereo. It would always revert to a surround mode and resisted any manual stereo setting. This is a great recording that still deserves good ol' stereo playback.Other cd's did not exhibit this behavior. Any clues?