okay, so im havingsome trouble here, i have realtek AC97 and i accidentally uninstalled it, now my computer has absolutely no sound. I WANT SOUND BACK!!! so when i try to do anything with sound and volume i get a message that says "there are no active mixer devices available" i tried to download a driver detective but that ran a scan and that was all. I'd really like to get sound back, so HELP PLEASEEE!!!