If your using DiSEqC 1.2 you will have to set-up the dish positions manually. If your usuing USALS it should be automatic.
Here's the USALS procedure from memory
First make sure the dish is correctly aligned on a satellite, eg THOR 1W
Press Menu -> Set Up -> Service Searching -> Tuner Configuration
ALPS BSBE2 (DVB-S2) - Press OK
Configuration Mode: Advanced
Satellite : THOR 1W
Voltage Mode: Polarization
Tone Mode: band
LNB : LNB 1
DiSEqC Mode: 1.2
Use USALS for this Sat: Yes
Longitude: Set this to the correct Longitude for your area.
To find the correct longitude settings for your area go to the following website
Worldwide map search, route finder and travel directions - powered by Multimap
In the "Find a Map" box at the top left of the page, enter your post code.
Select your country in the drop down box below it and click on the "Find" button.
This will display a map on the screen and below the map at the bottom right you
will see your Latitude information, example below for Post Code NW1 UK :-
Lat: 51:31:59N (51.53319)
Lon: 0:08:40W (-0.1445)
So in this example in the Dreambox menu you'd set