Okay one day I got on my computer and it sort of booted up but then crashed. I started it again and there was no sound and a little installation balloon popped up asking me to install a multimedia audio controller. I clicked on it to try and see if this was the thing for my sound, but basically it said it didn't know where to look for files or how to install. I really want my sound back and have looked everywhere for ans answer, any help people? About my computer all I know is that its a Windows XP. The speaker system Im using is Altec Lansing speakers and sub woofer I think ATP3. Not sure. Please help my ignorant mind figure this out.