Just got the 2700a installed with the 4dtv and c/ku BUD. Its working but i see a wierd problem. When I postion to a satellite with the 4dtv and then try to view Pansat output, I get either "no signal" or the picture freezes. I have discovered I can correct this by turning off the 4dtv. I also tried bypassing the splitters and going directly to the diseq switch. Same problem. ( does this indicate an LNB problem ? ) Any ideas from anyone ...