I am trying to set up a 522. I have a DP34 and DishPro LNBs but SAT1 input will not recognize the LNBs. Sat2 Input is fine. I have been told by the person who is assisting me that I have to have DishPro PLUS LNBs to work with the 522. Is this right? All the wiring diagrams from Dish show that I can use DishPro and a DP34. Thanks for your help.