I know this has been discussed ad nauseum, but it's driving me crazy.

I'm running a HP Pavillion a562n and recently added an external
SataVault RAID drive, which I'm booting off, instead of the C drive.
Ever since the switch, I lose my audio device intermittently.  Yes, I
tried reinstalling the Realtek 97 software.  Also the BIOS sound is
enabled.  And I've tried rolling back the driver, and uninstalling
Realtek and then rebooting, which helps sometimes.

Trouble is, I keep losing the audio device, and I'm thinking, could it
be a conflict between my SATA drive (D), and my old internal HP drive
(C)?  I'm booting and running off the D Sata drive.  Maybe the hardware
driver is looking at the wrong drive?  I can't tell.

Thoughts?