>>It seems odd to me that you would have Soundblaster 'Recording' ports available in Windows and not in 'Playback'.
Sorry, that last one (SPDIF-OUT) is the Soundblaster.
>>You said earlier that you didn't think the input port was needed and that fixed things. Have you tried that again?
It hadn't changed. So I reset the factory settings and went through the steps again. Aaannnd...no joy.
:-(