question on dish1000.4,installer installed this dish when done we had great hd but had black screens on the sd channels and hbo channel 300 and no sound on the music stations. all signal strenght were above 60 percent. new wire was also used.showed the three sat.numbers with all good signals.tech kept telling him was either the wire,lnb, or reciever. he changed the lnb no change.we rehooked up the 500 and the sd&hd channels were there. so it wasn't the reciever.reason for having the 1000 installed was to get our locals in hd.any ideas why this did this since dishtech could not figure it out any help would be appreciated. This is a vip622 do we need a smart card to use the 1000.4 dish?