Richard Wagoner wrote:
My question, then, is: is there a way to change the rotation easily
(such as through the service menu)? I can get to the service menu,
but I don't want to experiment, and most settings don't seem be
connected with rotation.

The alignment problem you are seeing is called 'tilt', and if you don't
have an adjustment on the service menu (maybe under Environment?) then
you can adjust it by using the tilt magnets on the yoke, or by rotating
the entire yoke assembly.