Hi guys

I posted about this issue, but have more info. The set has now been upgraded to the latest version. This has the blu retro fitted, however this problem still persists,that I have no sound on hdmi on input a,b and c. I do get sound on the DVD but only from the centre speaker, the front speakers switch on but no sound, I have replaced the hdmi cables for sky and the mac but still no joy, even the engineer is not sure why this is happening, I just wondered if anyone has had this issue