Hi I've got a question regarding the mysky audio output over Hdmi.

When I go into the settings and set the Hdmi digital audio output to MPEG/PCM, I can control the audio volume via the sky remote. But when I change this setting to Dolby, I lose the ability to alter the volume via the mysky remote and have to alter it with the TV remote. Is there another setting somewhere I have to set to correct this, or am I boned if I want it to have a Dolby audio output over Hdmi?

This came about as I was using ARC from the TV to home theatre and didn't want stereo output from the home theatre, changing the audio out setting to Dolby gave me proper surround and less of an audio delay as well.
Cheers