Not sure what's going on with my machine. Up until about a 2 weeks ago, everything was working fine (well, as fine as it normally works anyway)...
Then all of a sudden, no sound, anywhere. I checked on another machine to make sure the headphones were fine (and they are).
Win7 Device Manager shows my Creative SB X-Fi, HD Audio, and a PlayOn Virtual device
Under Playback devices there is SPDIF out and Interan AUX jack that show up under the Creative SB X-Fi, then I've got Speakers and Digital Audio (S/PDIF) for Internal HD Audio.
I've tried plugging the headphones into all the various jacks, and Win7 correctly detects it plugged in for everything except for when it's plugged into the X-Fi card. But in all cases no sound from the headphones. I seem to remember there being a speakers for the X-Fi, but I don't see that any more? I suspect something in software, but I don't know for sure. I've update all drivers, so suggestions would be welcome.