I just got DTV installed Thursday. 2 HD boxes & 2 regular boxes. I'm completely new to DTV & terminology, but I do know that everything was working great-went out & bought a big-screen so I couldy watch the game Sunday. Saturday morning, everything hit the fan! Got the message 771A that, supposedly, has something to do with cabling problems. I reset the DVR & got a message that SWM was screwed up. Called tech support @ 12:15-went thru all their steps & she said a local tech would call in 20 min-1 hr. Didn't happen. Called tech again @ 3-local tech will call 20min-1 hr. Didn't happen. Finally, after calling 4 times, tech guy came out-replaced the SWM-nothing; replaced the splitter in the attic-nothing; said he needed to replace the BLN? at the dish, but none were available-spoke to his supervisor & he said none were available in the whole state, but, miraculously, the the tech found one-installed it-nothing. Seems strange that this affects the DVR & one regular, but the other HD box as well as the other regular box are fine. VERY frustrated & needed to vent. Thanks for the opportunity to do that.