My first 510 that was 9 months old was replaced by this one that we have had for 6 days, it it too is dead. Come home from work, sit down to watch some tv, decided to set up a timer on a show, hit the search button, and it said "error" on the search screen. I thought it was weird, I did a seach for another show, same error message. Turned the receiver off, then back on, searched again, error message was back. Then the damn thing turns off and back on by iteself, does the "acquiring satellite signal" test and then this appears: ERROR 311 A serious problem has been detected with your hard disk drive, error code: 04bc Please call 1-800-333-DISH Oh yeah, I called them. On hold for 10 minutes for tech support. I had to unplug the unit for 2 minutes, plug back in. I described to the guy what the unit was doing... turns itself on, does the "acquiring satellite signal" crap, then turns itself off, then back on and repeat. For a total of 4 times before the previous error 311 appears again. Guy informs me it's not going to work. Sending out another one. The funny thing is, the last POS I returned to them is still in transit to them. Oh, the irony... I'm laughing soo hard. 510s are gigantic piece of *#&%! Seriously, I don't care what anyone says about them, and how much they love theirs, and how perfect it's been for them. Truth be told, they are unreliable (extremely in my case,) technologically inferior to other similar devices, and cheaply made for the masses. I guarantee I will be compensated generously for this unfortunate string of events that I call the DVR 510. I won't even get into the shipping fiasco that delayed this shipment for 2 weeks.