I have a 322 Duo Dish Network receiver that works fine. I recently bought a used DVR 625 receiver and installed it instead of the 322, but I don't have any image on the channels I just have the program guide. When I get into the antenna screen there is signal strenght only in Sat 119 and none in 110. Then I went to the check switch screen and noticed that there were 3 Sats saved( 110, 119 and 129) and in the 322 there are only 2 (110 and 119). I don't know if that is the problem, and if it so, please tell me what to do to have just 110 and 119.