I have a Technomate 7102HD Motorised system set up. I have just purchased a new TV PanasonicFK750B. Not being technically minded, i thought, disconnect HD leads, replace with new TV and reconnect HD leads, therfore from Sat receiver to TV is HDMI 2. All is ok, everything working picture etc but i have no sound, when watching satellite, is there somthing in the Technomate menue i should have changed ?????? please can anyone help, thanks.