I am using a dish 1000 with a DPP dual. I am also using the supplied separator connected correctly (even tried a secon connector to make sure it was working). I have a full signal on tuner 1 and no signal at all on tuner 2. I have had this recevier connected to a dish 1000.2 and the second tuner worked. What is wrong with my dish 1000 set up? DO you need two cables on a dish 1000?