I have the above home cinema system set up since yesterday. It was working fine but all of a sudden stopped sending out sound to the surround speakers only sending to the front left and right and sub. Looking at the display it shows on the front left and right as active (little illuminated squares on the right hand side of the display. Like any new toy I was messing with all the settings so thought it might be something I did! I did a factory reset and everything was fine again. Then it happened again and I know all I was changing were the different sound modes. It is the same watching TV or DVD. Can anyone tell me if there is a particular setting I may have changed by accidient that would cause this?