channel interference

I am getting channel interference on a few channels E4 HD Discovery HD to name a few

I have tried all transponders for the channels and keep getting this??
Anyone had this problem before?

ye its only on a few hd channels, all the rest work fine like *** sport, movies etc

Ye getting most channels but not a few, just checked the same channel with my old box 11855v29499 and it works fine, dont know whats up with this one

dodgy cable !!! tried the box in another room and is working fine, played about with the cable and got it running better, will have to run a new cable tomorrow