So I was able to get my HTPC up and running today and I've been going through Assassins guides attempting to get WMC set up and working. Thank you for the guides!
I am running into a bit of an issue currently. Sorry if its been covered earlier in the thread.
I ripped the BluRay 'The Dark Knight' using MakeMKV.

I selected both DD 3/2 + 1 and TrueHD 5.1
After ripping it I opened it in GraphStudio.

I see that it's pulling in the audio. So I right click on the Audio portion and view the properties.

Everything is checked. I know in the guides it says not to check the 'Framing' checkbox. I've tried checking and unchecking yet I still only get the Dolby Digital 3/2 1 streamed to my receiver.
My receiver is able to handle all the new audio codecs fine. My question is did I set something up wrong that is causing the computer not to send the TrueHD 5.1 audio? I wanted to get an idea of where to fix this before I dive to deep into this. I'm playing the .mkv using GraphStudio because I didn't think that would have any affect on what audio is sent.