Many PCs require a very specific driver install order. Example at http://forums.cnet.com/7726-7587_102-2699006.html?tag=posts;msg5451420
The USB audio system is very different from what it takes to get onboard audio working.
So I formatted my pc and the sound doesn't work even though I've installed the drivers. The weird part is that when you go on manage audio device there is no speakers icon just a Digital Audio Icon . Whatever I plug in (speakers or earphones) in the audio socket it doesn't work but if I plugin usb earphones it works perfectly. Can anyone help?