Last night I upgraded from Dish HD only to AT250 with HD Ultimate. While the CSR was on the phone I looked at the channels to make sure they were all there. All of the channels didn't show up so she had me do a soft reboot. On reboot the "acquiring satellite signal" for 119 came up as usual and started going through 0 of 5 on transponder 17. However, everytime it got to 3 of 5 the unit would flash and go back to 1 of 5. This happened over and over. We did a hard reset and the same thing. We did a check switch and all of the satellites showed up. I then called technical support and got the same results. A storm was coming so we stopped testing and they thought I should wait unitl morning. Well, the same thing again this morning with no rain or heavy clouds. Now, for the most part, all I get is a blue screen from the tv with no signal form the box. (HDMI connection) When I do get a signal from the box it does the same thing as last night. I've reset the box half a dozen times and done three check switches. Everything happened after I upgraded and was told to reboot. They are sending a technician, free of charge, tomorrow. I want to know if anyone has any idea what the problem may be? I would like to fix it myself so the tech doesn't have to come out.