ummm are you using the coax loopthrough on the back of the Dreambox?
are you manually scanning for sats or using gotoxx?
have you sent the dish to say 30w and gone outside for a nosey to see if its actually moving???
lastly, with it being a new set up, you wouldnt be the first poor soul to have a coax thats been to tight, and the dish has stretched the coax, or like in my case first day snapped it!!... can you get to the dish for a inspection?
tips on finding sats manually..
send your channels onto your Dreambox over the network from your PC using Dreambox edit..
make sure you have the latest cam/key combo ie NewcamD for example and that its selected for use.
then select a channel... say Reality TV on 28.2e (its clear)
on the screen were you put your motor setups, press blue choose Astra 28.2 then goto step east and west...
keep and eye on the signal and when you get round to 28.2 the picture for RealityTV will suddenly pop up
keep stepping until your signal is the best you can get... then save
sometimes once you have one satellite GotoXX will locate the rest after you have put in your Long Lat etc etc..
if not you will have to repeat the process of the above for 28.2, with channels on 13e, 30w etc etc