how do i restore sound to win 98

What is the make & model of the computer?

the pc is a IBM C72

The only find at IBM for C72 is a monitor model.

Download this:

http://www.belarc.com/free_download.html

What is listed under System Model?

Also you can try Start/Run/ dxdiag | Sound

What is listed under Device?

Once you know your model you can go here:

http://www.ibm.com/products/finder/u...inder&trac=SU1

Insert your model into the driver finder.

You will probably find a version of AC97 Audio for 98.