A128 Heading 'UP'

I have a new a128 that is working very well but has one annoying issue. The display reverts to North up whereas my preference would be heading 'up', (the boat icon would stay pointing to the top of the screen at all times). At this time the a128 is not connected to any network or other external cOmponents.

Any assistance to make this change and make the change 'stick' thru power cycles would be appreciated.

Thanks

Dave