Hi all, I recently purchased a new Pioneer HDMI capable av reciever. I initially connected the humax using HDMI only all was okay until I noticed I only got sound on HD channels ?In the meantime I have installed an optical cable and set the input on the amp as such. I would rather the sound was via the HDMI cable, as the amp only has a single optical input which I wanted for the TV. Does the Humax not output all channels (sound) on HDMI ? I do have the sound level on the Humax at a minimum. Any ideas ?