HDMI Input, good video, no audio - M17x R3

Hello,

I have had my computer for a year now and I am now attempting to use it with my PS3 via HDMI Input.

I was able to get the video, but none of my attempts at getting the audio working, has worked.

I tried doing the registry method, updated IDT driver, nVidia Driver, everything that I could find.

In the nVidia control panel, the 3 options are grayed out and not usable.

I modified the PS3's audio output to see if that would have an effect, it did not.

Please help!