Today when I booted my PC everything seemed fine until I started listening to music. Last night everything was fine but now I get a really nasty hissing/static noise (like when you crank up the mic volume but x10 that) from the speakers and the sound is so low that I barely can hear it. I thought it could be caused by a codec pack I installed last night but uninstalling it didn't change anything. I have also uninstalled/reinstalled creative Vista x64 drivers still nothing. The onboard AC'97 is fine though. Any ideas?