Originally Posted by
fink
I would reinstall the sound card drivers. If they came on a CD with your sound card then use those. If you let windows choose then open control panel> device manager and right click the sound card driver and select "uninstall" then reboot the computer to let Windows automatically reinstall them. See pic for an idea of what to look for..
Once they are installed then you'll need to start from scratch with the webcam and try a different solution to get the sound synced. Possibly downloading the latest drivers from the webcam's own website.