My DISH Network dual dvr that I had a year started shutting down on its own. The lights would go off but the fan would still run on high. It would do this 15-20 times a day. Got a brand new dvr last week. It worked a week and now it''s doing the exact same thing. It stays on 'no signal' and flashes big white rectangles on and off and the one light on the front keeps bliinking. I can't make it shut off without unplugging it. the remote won't do anything when this happens.