Installed Power DVD BD edition that came with my Blu Ray drive and im getting a picture but no sound.
In the audio options its listing use SPDIF only and giving no other options, advanced options is greyed out as well.
Under information it says :

Multispeaker Audio Device: Realtek Digital Output (Realtek (not in use)
SPDIF Output Device: Realtek Digital Output (Realtek (not in use)

Im using a 9600GSO and using the internal SPDIF to pass the sound to it for pass through so im thinking it should be using the Digital output for the HDMI audio?
Any idea how to change it?