nf2 - disable dolby digital live encoding?

Anybody know how to do that? I'd like to be able to disable the dolby digital live encoding and just output PCM stereo audio when I'm playing music. Using the latest Nforce drivers and have the latest apu audio driver on top of that.

In the NvMixer.. Go to the second button on the bottom.... On that screen hit the drop down menu and take it off of the option w/ the Dobly digital...

Thanks. I didn't see it, but I'll try to look again when I get home in an hour or so.