Good day, I have a Gateway GM5626 it came with vista, but i hated it, so I decided to downgrade back to Xp sp3! Everything is working properly except i'm getting no sound and my tv tuner isn't working. I was told before that the tv tuner probably wouldn't work once i downgraded, that's a small issue, the big issue for me is...........no sound. I go to the gateway site and all they have is vista drivers. i did install a vista driver and device manager says everything is working properly but i can't hear any sound. Speakers and everything are plugged in correctly. I don't know where to look and don't know the exact driver i need. all i know is in device manager under sound i see legacy audio codecs and it says working properly and i see Sigma Tel high definition audio codecs, i downloaded a sigma tel driver for xp but still no luck, i don't know what driver i'm looking for since i don't even know the exact name of my soundcard. it came with the computer but i don't have a name. any help thanks