I bought this box 2 months ago and the current issue is no sound on our TV when we turn on the TV and Humax box from standby. It happens almost every time and although we resolve this it is sometimes hours later without there appearing to be any pattern as to what resolves it. The sound just comes back after various switches on and off and flicking between scart/hdmi, changing channels etc. It makes no difference whether the tv or box is the first thing switched on. Our TV is a Matsui model M22LI618 and I have checked all the connections and tightened them. Humax support suggested re-setting factory settings and then when this did not work, said try disconnecting the scart – because one problem may have been I had both hdmi/scart plugged in. but this has not helped either. any help please?!