We have a problem with our Oyster 85cm dish. We have got a message on our Oyster box saying "LNB Failure" Is it a job I could do myself? I have no experience of working on dishes or would it be better to go to a repairer. Is it possible to fit a higher sensitivity LNB ours is 0.3db. If so where is the best place to get a replacement? Is it possible to fit an auto skew unit? ours is the old manual one. I met seanno in Spain and he recommended an internet addition, but I cannot locate the necessary arm on the website he sent me to. I tried PMing him but kept getting an error message.