I have two HD receivers. A 622 HD DVR that I lease and a 211 HD receiver that I own. Suddenly the 622 has to be rebooted 2 or 3 times a day. It seems to only happen when I have CNN on. It will start making a strange buzzing sound and then there is nothing at all. No picture or sound. I can't even change the channel. I have to reboot the receiver to get the picture back. The OTA tunner has also begun to have some problems. Most channels now say they are 100% signal strength when they never were before ( I am over 50 miles from the nearest tower). Some of them now pixelate or drop from 100% to 0% and back to 100% in about 1 sec. Many times I get the Yellow box telling me that it can't find the signal but in a matter of a second or two the picture is back at 100% My 211's OTA tunner is doing the same thing as well. If this has happened after a software upgrade (this seems to be the case) why can't Dish redownload a previous upgrade that worked and put things back to normal? If it was the upgrade that remapped the HD stations to match the SD stations like HBO, Shotime, Starzs, HGTV etc. them who cares. Some of the HD stations don't show the same shows as the SD version anyway. HGTV is an example. If I pick channel 112 now I get the HD version which is not showing what I want. If I want the standard version now I have to change the channel again. This just doesn't make any sense.