Had a music channel on listening to it while cleaning the house and wham bam the loudest clap of thunder or lightning I don't know which but it scared me.Lost electricity for about 2 minutes didn't mess with Hopper for another hour just left it turned off. When I turned tv back on just a black screen used remote to turn on Hopper and nothing. Hopper was making a continous whirring noise. Unplugged it waite 25 seconds and plugged it back in. Still nothing just the whirring noise. I notified dish and they will be sending a replacement receiver. I thought it to a dish technician to install these. Any ideas as to what to expect and look out for. I have hooked up 622 receivers before so I know a little about it. I hope they have some good instructions with it.