Make sure you are using the X4 tile unless you were trying with a C-band dish.
Double check that it's setup for an LNBF and has the L.O. set right.
Even after all of that, you still may not see any channels, but you should be able to get a DC lock on X4-4, X4-5, X4-6, X4-7, X4-9 etc. Basicly...