I got a Moteck SG-2100A motor for my dish today, managed to get it going but only for a problem with going past 19.2E,

I've tried goto function but it won't go past 19.2E,
using the button on the motor it self is not a problem,
full east to west range.
did an multisat scan 13E,19.2E and 28.2E the dish moved to 13E found transponders ok(polsat etc) then moved to 19.2E found transponders ok (vox etc)
then tried to move to 28.2E but the motor did't move, it stayed at 19.2E
(also on the motor 19.2) and rescaned 19.2E as 28.2E so i got the same transponders on 19.2 as on '28.2'?.but it won't go past 19.2E.

I think it a software limit problem, i've tried to disable/enable it in the menu, when 'disable software limits' is selected the green tab changes to "do it!"
but when i click on it or use the green button nothing happens (not able to select the button) is there another button I got to press ?.

any ideas?

I've got:
Dreambox 500+