No sound after SP1, replaced audio card

Audio ran fine before SP1.

Here's the system:

Asus Formula Maximus
Intel Q6600
8GB RAM
Onboard sound (SupremeFXII)--don't know chipset
Post-SP1 uninstalled audio driver and installed Creative SB X-FI Xtreme Audio

Had Vista64 running just fine with audio. Installed SP1 and now the volume mixer shows "No audio device is installed". Device manager shows the onboard audio card working just fine.

At Microsoft's suggestion, removed/uninstalled the onbard audio (including turning off in BIOS), rebooted and then installed a new card, Creative SB X-FI Xtreme Audio (it's PCI-e).

The Device manager shows the driver and device working fine. The volume mixer shows "No audio device is installed".

I've attempted a system rollback, but the SP1 install is no longer available.

Short of reinstalling Vista, any ideas?

I've looked at several other threads (and elsewhere on the internet), but most of them really don't offer much beyond "reinstall the driver". Been there... done that.

Thanks much in advance.

t

After much research and fruitless driver replacement, I decided to bite the bullet and reinstall Vista.

A day and a half later, I'm back and running.

I've learned my lesson: make sure all your drivers are up to date and running properly before applying SP1.

Good luck to anyone else in this situation.

t