David,

Any further developments on the un-muting of the SPDIF playback line of the Audigy card? When we last left it, it worked (for the most part) in Buffer mode, but not non-buffer mode, which is what I need. I have no idea if this will help or not, but when using XM in SD, if you have the Windows Playback Mixer open, you can watch and see the SPDIF In channel's 'mute' tickbox get checked and unchecked as you switch in and out of the XM module in SD.

Oh, also, when we last left it, even in Buffer mode, when I go to Media while having XM audio playing, the XM audio does not mute when I start an mp3. The audio output is simultaneous.

Thanks.