My brother gave me a computer and I fixed it up to make it useable for me, but the only problem I am having is that the Multimedia Audio Controller Driver is not working. He used to have a sound card with surround sound speakers, and we removed those becuase he got a new computer. So now I have no sound on the computer, but I keep getting an error with the Multimedia Audio Controller. Can someone tell me a wy to reset the drive back to the way it was before the sound card was install with the surround sound speakers. Thanx in advance.