I have dn receiver with card and hooked up to a dish 500 with dual lnbf 2 outputs for 2 independant receivers 1 output going to living room tv 2nd out is going to my room where I have invested in a pansat 2700a but cannot for the life of me get for it to work properly.In installation set lnb's to standard and dish pro still scans channels fine but missing alot and then some disappear or black screen.....someone help