When i set up my Pansat 2700a reciever. i first downloaded the international chanels first. Then when i got the american LNB, i set that up and got all the american channels, but now the international channels stoped working, Then i just simply redownloaded the international channels, but then the american channels stopped workin. I am using the echo 7 k/u for the american LNB and echo 3 k/u for the international channels. Can someone explain to me What the heck is happening in that little silver box. I believe i set up the dish's and the switches correctly.