I had DISH installed in Jan. '09 & had no problems at all until early July 2009, when my original 722 started acting up - restarting repeatedly, hard drive running at all different times of day or night, and could not watch either TV1 or TV2 until the rcvr finished resetting. Dish service has been out 6 times & done everything imaginable, and they have also replaced the receiver 4 times, twice with 722's, and twice with the newer 722K. With each service visit, or each new receiver, things work o.k. until I turn off the receiver the first time. All the receivers have had similar problems, and the 722K's have remote control problems. Timed DVR recordings are mostly cut off within 1 - 10 minutes. If the TV is on & receiver is working, there are usually no problems until I try to turn it off, when it may not respond, and once it IS off, the hard drive runs, and it keeps resetting itself. On the last visit the "Field Service Manager" came with a technician, but he did not know anything more than the tech. They said it might be too hot inside an enclosed cabinet, or the cell phone booster might be causing the problem, so I cut open the back of the cabinet, left the door open with a fan blowing through, and shut off the cell phone booster for the whole weekend. It did not help...same problems.