Hi all, got an engineer booked for this issue but thought I'd post here to see if anyone had experienced similar. Recently had multiroom installed and replaced our HD box with a 1Tb box so that we could use the old box as the multi room. I generally play Xbox in the evening when my wife and kids have gone to bed but over the holidays, this issue has been noticed because there has been someone watching the main box. When I disconnect the HDMI in the multiroom to connect the xbox, the main box loses its signal. The picture is restored as soon as the Multiroom HDMI is reconnected. I suspect that the multiroom box is somehow controlling the LNB and have checked this by removing both feed connections while the HDMI is connected then removing the HDMI. In this instance, the signal on the main box is not lost immediately but the picture becomes 'blocky' and stutters. This continues for about 10 minutes before the signal goes completely. I have tried accessing the engineers menu and switching the LNB power off and on but it does not make any difference. The signal is only restored by reconnecting the multiroom completely. I'm hoping that the multiroom box box is not on its way out! Anyone had similar? Cheers, Ed.