I recently reformatted my computer and i accidentally lost my sound driver.
I got a biostar k8m800-m7a motherboard that runs on Windows XP.

Can anybody please assist me in this matter?

Have you no BIOSTAR disc? Did you look at the drivers on the Biostar site, or did you install the sound card separately.

I have no disc for it, and as far i recall the sound card would not have been installed separately.

Try these links out, they might be able to help you out greatly as they're from the US BioStar website...

BioStar: Onboard Audio
or
RealTek ALC650 6-channel audio CODEC driver (WinAll)

hey chino thanks for your help. Know something....dummy me should have figured that out from the start (hit myself on head).
so thanks again

Anytime, jalba.