Same configuration? (Same: Mobo, Processor, Hard Drive?) Just new case and cables? Do you have onboard sound, are you running a sound card, or perhaps you're plugged into a fancy graphics card sound port?. Try these configuration tips before you tear it all apart: Check your device manager in the system section and make sure your intended sound device is operational with no (!), or (?) alerts next to it. Reinstall any mobo, graphics card, or sound card drivers which run your sound device. AND finally, if you have more than one sound device on your computer (mine has all 3 options I described), make SURE you have the right one selected in your sound manager!