Sound card troubles

Desktop, WinXP pro, SP3, Audigy sound blaster 2ZS platinum.

I recently disassembled, cleaned, and reformatted my desktop. After the format all was well, sound card worked beautifully. A few days later it quit, no sound from the Audigy or the resident sound output of the MB. Tried the normal stuff; restart, reinstall drivers, etc, no luck. Tried uninstalling and reinstalling plug and play hardware, no luck. Tried pulling and reinstalling the card, no luck. My device manager looks like the picture I've attached. It looks like the Audigy has everything it needs, but there is that extra "multimedia audio controller" that has a bum driver. Any thoughts?

That's probably the onboard audio...just a guess.

Been some time since I used an actual soundcard...can the onboard sound be disabled in the BIOS?

Louis