Yeah, I still need to set it to 2 channel audio for it to allow me to change surround sound modes though to pro logic and the like. When it's set to 7.1 on Windows it still displays "not used" on the receiver when I press the A.F.D. button. This is just a minor inconvenience now though, as most of what I listen to on my computer is not multichannel anyway. So I guess if I want to listen to true 5.1 or 7.1 I just need to change my speaker mode in sound settings on my pc.