I have the strangest signal loss problem. I have a Dish 1000 system with a HD and standard def DVR. During the day, everything seems to work great. I have a good signal from all three sats (110, 119, and even 129). However, at night things seem to fall apart. Whenever I change channels, I will lose the signal. It doesn't seem to matter whether I'm switching to a particular sat or transponder. Once another channel is selected, I cross my fingers. If I'm lucky, it will come back after a few seconds. If not, I get nothing. Using the menu 611 I will not have a signal or the signal will appear for a second or two, then go away again. It seems like the signal is there, but for some reason will not lock. Lately, I've also had problems with not receiving the local braodcast in HD, even though the info shows that the broadcast is in HD. The really frustrating part of this is that it only seems to happen at night, not during the day. Could it be that I need to have a DPP44 switch installed? Could this provide enough signal strength to allow the receivers to lock better. Thanks in advance for the help.