It has been very windy in the LA area for several days and I get a "searching for satellite message" at the bottom of the screen. I am able to get the sd version of all channels, but the hd versions are distorted and generally unwatchable. This is only on certain channels like CNNHD, NHLHD and probably 20 others. This happened last week during the winds and was still messed up after the winds stopped. Called tech support and we rebooted but it did not cure problem. I was having the tech come to the house to fix, but the day he was to arrive all were working properly, so I canceled the call. Here's my question: Does the receiver (HR21) adjust itself for minor movements of the dish and that is why it fixed itself the first time?