and than downloading the latest drivers for ur mobo sound-card,
whats ur motherboard model? i could help
I have tried uninstalling, sweeping (btw i used the program you suggested), and then reinstalling. It dosent help at all. I got the motherboard from an hp XW4300 workstation.I tried the HP drivers, just a very old version of the realtek drivers, nothing seems to be helping. I had a sound blaster but then it died and i even sweeped those drivers.