Hi all, I hope you can help me - I have been a DTV customer for 20 years and I have had the strangest problem crop up. It started with the error 920, "Has not received guide information from satellite for 7 hours. Please contact DTV customer service." Note I have not actually seen any gaps or problems in the guide data as far as I can tell, I scrolled out 2 weeks and it looked ok. This error has started cropping up on one of our two HR20-700 receivers over the past 3-4 days. The other receiver does not show the error at all! As background, the last work on anything (receivers, dish, etc.) was mid-November, we had our roof replaced and DTV came out and re-aligned the dish. Software version on both dishes is 0xabf. Dish is a Slimline-3. First thing I did, was do a red-button rest - error came up again. Then I did the system diagnostic check (press program guide and right arrow simultaneously on receiver), and the signals were: Tuner 1 - 97 Tuner 2 - 79 Network Tuner - 96 (I saw on the Internet to check the signal strength of Network Tuner to ensure it was not abnormally low). So then I ran the Satellite Test found in the Settings area, and I got error code 83, Guide Test Fail - "Dish selection error detected 119 orbital slot not configured but was detected. Select correct configuration before continuing." I'm sure haven't touched anything with that, could it have been set up wrong by DTV last November but the Guide errors just started this week? So I decided to compare the satellite setup on the "bad" and "good" receiver - both were the same! They were: Dish type: SL3 LNB SW Type: Multi switch RB/INTL: Non selected Note, maybe this happened through a software upgrade, but I am almost positive the system used to report my dish as a Slimline-3. Now it says SL3 LNB. Is that relevant to my problem? So I checked signals on 101, they were all 95 or above. But I noticed 119 did not show up at all when I scrolled through all the choices! So I decided to change it to SL5 LNB. (Note - all the other choices, when I selected them, showed no Azimuth/Elevation/Tilt numbers so I assumed they were incorrect choices). I did not change or even go into any of the other menu selections other than just changing to SL5 LNB. Then I saw 119 now showing up in the signal strength area! The signals were: 22 - 99 23 - 95 24 - 0 (ok?); 25-32 were all 90-100 except channel 28 was 35-40. I completed the setup using SL5 LNB, but it got a different failure: Guide Feed Tests: Fail. Error code 82. Dish selection error detected. Incorrect signals received for program data. 119 Orbital slot is configured, but not detected. Select correct dish configuration before continuing. I left it in this point, configured for SL5 LNB. What is wrong - I suspect this was done wrong in November as I remember him seeing a test fail on the TV and then changing some things. Is this something I can fix or do I have to schedule a service call? Let me know if you have any questions or want to know something else - I tried to explain everything I did and saw Thanks!