I have a Celeron computer and Opti 16 sound card on it. Recently I have upgrade my windows 98 to win XP and since then I have a problem. Namely, I cannot find driver for my audio card. That is not too strange, because this sound card was manufactured before XP appears. Have you any idea?
I have two useful web addresses where you can try to find it. They are: http://www.opti.com/html/drivers.html#audio
and
http://driverzone.com/
Also, you can always try to download driver for windows 2000 operating system. I think that it will work properly on windows XP. I hope my answer helped you!