Did you check with the Windows 7 Compatibility Center to make sure your sound card can be used with Windows 7? If it is compatible, it might just be a case of finding the correct
drivers. Try visiting your sound card manufacter website to download current
drivers for Windows 7. If Windows 7
drivers are not available, the Vista drivers may work.
Hope this helps! Let us know if you are still having issues.
Cheers,
Cassandra
Microsoft Windows Outreach Team