I have NO idea how to get rid of this, it's very aggravating as it happens quite frequently. This was also happening with an ATi card with ATi Silencer. I changed power supplies hoping that would fix it, but no luck. If anyone has any idea how to get rid of this, please let me know. It seems to happen when the fan kicks in, but also when I access Hotmail it starts skipping/slowing down my music. Also happens in iTunes and when playing Winamp. It was NOT happening when I was using just integrated nVidia 6100.