Realtek ALC1200: How can I get 5.1 audio from optical?

Thanks for both your answer and quick reply. I have all the boxes checked, and am going to try a movie. The only thing that makes me skeptical is that in the advanced tab all of the choices where 2 channel with many frequency rates. Anyway here goes and I'll let ya know how it went.

Doesn't work for me. I checked and rechecked everything. While testing, I can get 5.1, but I cannot get anything else than stereo in any application.