Hi all I have just taken delivery of Sky HD. This is connected to my Pioneer VSX2016 receiver via HDMI and the VSX2016 has an HDMI out to the TV. I have also connected an optical cable to the amp. If I select the input for this optical cable, I get 5.1 surround. However when the HDMI channel is selected, I only get stereo. Does anyone know how I tell the amplifier to output the optical input (and therefore 5.1) whilst the HDMI input is selected?