There is a new Audio driver for AC97 that has all the best of all the drivers for AC97, and it works great. You might want to try it... but remove the old drivers before you install the new gadget.
You can start by doing a Gurgle search for AC'97 drivers, then select from the ten options you will find in the search...
Those connected with RealTek are particularly improved... They have done a good job of making one driver set fit a number of devices... old and new.
We'll need some more specific information, please. Tell us the make/model of your computer, what version of windows and Service Pack level is installed?
Also, check if Windows reports any problem devices
- First make sure all your devices are connected and powered on
- Click Start->Run, enter: msinfo32. Click the + sign next to Components to expand it
- Click Problem Devices. Anything appear?
- If yes, click on it, Ctrl-A to select all, Ctrl-C to copy it, Ctrl-V to paste into next post