So last week, after approximately 2 years, my 2nd 722 Receiver decides to stop working. I did the usual troubleshooting (unplugging it and plugging it back in, etc), to no avail. When I press the power button, I hear the hard drive start to spin up, the green power light comes on, then goes off, and that's it. To make a long story short, Dish sent me a replacement 722, and all seems to be ok. Well, this morning, my wife turned the TV in the kitchen on (2nd tuner) and lo and behold, there is no picture. I turn the main TV on, and the same thing. It turns out, this receiver is now doing the same thing as the other one did. Has anyone heard of this happening? Could it be a bad software update?