My audio just went out, and I have no clue why. I put a cd in and transferred some files, which for some reason didn't want to finish. So I restarted it, and when it came back on I didn't have sound. I don't know what information you need to help me out. Let me know any ideas, cause I'm lost. I already tried re-installing drivers and it didn't work.
Did you check to make sure the audio is not just muted? Go into Control Panel > Device Manager, are there any errors showing up for the audio devices? If there are, remove them, and get the drivers again from the computer vendor, install them. See if that brings it back.