I have two receivers. A 625 (downstairs), and a 322 I think it is, (upstairs). Last week my 625 kept on dropping in and out with a signal loss. Sunday during the Dover race, it lost it, and it never came back. Other than the LNB drift message when I do sysytem info all had been good till then. Called Dish and we ran through all the normal crap. Instead of green boxes in my sats showed a red back ground, with a white X. CSR said the LNB drift finally go so bad, I now have no signal. All this is happening on the 635 only. The upstairs receiver is good to go. I don't know anything about that stuff, so I said ok, lets get it fixed. Tech shows up on Thursday, checks a few things, then gets another LNB, (USED ONE)installs it, and all is good. My wife turned on the system this morning, WTF, same thing as last week. Upstairs box works fine. Called Dish and someone will be there in the morning. My question is, is it possible for the 625 to be the problem? Could it be a voltage issue from the 625 to the switch? Any help would be appreciated. Thanks.