Yo Phil, I'm here. Ok, we assume HDMI connection (and nothing else right..._), and T-HD chosen on the BD itself. The first culprit is usually the player setting (it's most likely decoding internally).
I've set up a S350 before, and IIRC the "bitstream" option does not actually say bitstream. It was something like . . . "direct" ? . . .
It shouldn't be too hard to find. BD player menus are never that complex as far as that I have seen. Look for anything that might resemble output choices and the first one you see might very well be it.
Let us know how that goes. Just for future reference, here's an AVS thread of glitchy titles. If you ever get Harold/Kumar at Gbay, do NOT select DTSMA.
http://www.avsforum.com/avs-vb/showthread.php?t=1106061
Otherwise, as far as 663 settings, I've no idea.