Hi i have been having problems with my dm800 ever since i got it. it seems that it has a problem with diseqc as when i plug it into my motor it seems to work for a little while then all of a sudden no power to motor. I recently bought a switch instead but when i try and go between sats it doesnt change on box. but does show changing on sat finder i am using blackhole 12 and the latest sim also my tuner is rev k.