I have noticed the past couple of months my D12-300 has been losing guide data on no specific channel and no specific time slot! What could be causing this to happened? I moved the receiver to another room and had the same problem. I have the receiver set to the right dish which is a slimline 5 with a WB68, all receivers are set to the sl5 and have no problems with guide data. Any info on what might be causing this would be appreciated!