I've tried searching both on this site as well as other tech forums and have found a lot of people with various surround issues but nobody that has this one, and frankly I'm at a bit of a loss here.
I noticed that I didn't seem to have surround sound, although I haven't touched anything on my HTPC and it was working fine (I think) up to last week. So I went to the windows audio setup panel:
And I do see my 7.1 speakers, but when I click "TEST" it will send the front right, left, center and sub all to the correct speakers, then when it gets to all of the surrounds, it is mapping them to the fronts!
I did a bunch of pretty standard troubleshooting -
checked to make sure the nvidia audio device is set by default, it is
updated the nvidia hd audio driver to latest version
checked to make sure all of the surrounds are working fine in the onkyo receiver setup menu, they are