I'm not sure,but I think you have to get new maps off G1 transponder 3.That may be for maps and guide.I think you can get just the maps off G5 if you can receive that sat.After downloading maps,you can get authorized off X4.I, read where people have subbed to GSN on X4 to get authorized.The polarity thing works the same way as H or V,in that a certain mux may be H and after going through that mux the next ch. may be on V,so you would change ch.on the receiver that controls the polarity.I think you can also download maps on G10.Hope this helps.
