You cannot use all the features of an AC '97-compliant audio device after you install Windows Vista

After you install Windows Vista, you cannot use all the features of an integrated audio device that is compliant with the Audio Codec '97 (AC '97) specification.

This issue may occur if no driver is available for the audio device when you install Windows Vista. If no driver is available for the audio device, Windows Vista installs a generic audio driver so that you can hear audio after the installation is complete. The generic audio driver may not support all the features of the audio device.

To resolve this issue, follow the steps in the appropriate section.

Your computer is connected to the Internet

View the "Troubleshoot driver problems" topic on the following Windows Online Help and Support Web site:

Your computer is not connected to the Internet

View the "Troubleshoot driver problems" topic in Windows Help and Support on your computer's hard disk by following these steps:

1. Click Start, and then click Help and Support.
2. In the Search Help box or in the Search online Help box, type Troubleshoot driver problems, and then click Search Help.
3. In the list of topics, click Troubleshoot driver problems.
4. Click the link that best describes the problem that you are experiencing.
5. Follow the suggestions to troubleshoot the problem that you are experiencing.