So I called in and went through all the troubleshooting steps for a 771 searching for satellite message on my bedroom receiver, a H20-100 HD receiver. My living room HD DVR is not having any 771 issues. The signal strength seems strong except for satellite 103, which is coming in at 0's. I am able to get my SD channels, but HD channels come back with 771. I've checked connections to the receiver, reboot, unplugged, etc. They can't schedule a service call tonight because of system maintenance, so in the meantime is there anyone who enjoys troubleshooting and has any thoughts or suggestions as I try to figure this out?