Pole plumb in both directions, triple checked Lattitude and longitude set in technomate 5400 ci reciever and near as dammit corresponds with London (i'm in woking and used info from dishpointer.com) so they're in the right way round. Due south located with a rangefinder compass Told reciever to go to Thor, which results in a very small burst of movement. then... Signal Level... 89% Quality .... 22% No picture.... get the bbc world channell up (no signal)... sit there and fine tune / move the dish east and west for ages in either direction no picture or signal quality still. Tried moving the dish up and down same, tried moving the motor around the pole same. Strange thing is when initially setting it up we did at one point get a channel briefly, but nothing since ..... help please