Hello All, first time poster here. I don't know how deep I can get here technically but I have a serious issue with my signal that nobody can seem to figure out. I switched from cable to DirecTV and loved it. I live in a very large apartment building in San Francisco (43 stories, 486 units) which is served by a company called "Consolidated Smart Systems" for Sat TV. We have a dish array on the roof and the signal is split out to from there to the individual units at "J Boxes" which serve a few floors of the building each. High speed internet (via a local telecom) is piggy-backed on a single coax line into my unit and split out to my cable modem and sat box (HR-21, HD+DVR). Even with one coax input to the sat box, I can still record on two tuners. My problem is that one random day, my box stopped receiving a signal. After a couple technician visits, including the guy who designed the building's massive sat TV switching/routing system, the only clue anyone has is that the internet signal (which is piggy-backed on the same line) seems to be running too "hot" to my unit. The strange thing is that while the HR-21 is not even capable of receiving a signal, the loaner D-12 box (basic model, non-HD, no DVR) fires right up with no problems at all. Obviously there is an issue with signal quality (even tried using the BBC which wasn't required and still does nothing) but my question is, how do these two boxes process the signal differently (above and beyond the functional aspects i.e. HD and DVR)? How come the HR-21 can't get past 0% in the initial signal acquisition and the D-12 sucks it down like a cold beer on a hot day? They even gave me a brand spanking new HR-21 and it still can't acquire a signal. Any ideas? PLEASE don't make me go back to cable...if I have to stare at that weak blue comcast menu again, I might puke.