[Q] Screen Orientation configuration

Hi all,

I have an Emgeton 7 inch tablet for which I'm trying out some different ICS ROMs on. The best ROM I have found so far has one issue:
The screen orientation is 90 degrees out. The accelerometer actually works but it is set to 90 degrees "ahead"

How and where is the default settings for the accelerometer set and is it possible to change it without a re-compile?
Would I be able to use anything from the stock ICS firmware to fix it?

Thanks in advance.