Asus Mypal 636N - Screen Re-adjustment

For some reason, the screen needs adjustment.

I know there are a few ppl in here now using these - does anyone know how to re-adjust the screen?

I cannot find any menus or programmes that do this other than in the very initial set-up.

In some programmes, the scroll bar on right side cannot be accessed - when putting the pointer in the scroll bar, it is actually grabbing info in the work area.
Co-pilot works fine, Ozi-ex works fine, but the windows based programmes Excel, Word and the file explorer will not pick up the scroll bar.

Any help appreciated.