I was  part way through making a  new A-B line  ....  I.E. Point A button was pressed,  but not Point B yet... when  I had to shut the tractor down  for an unrelated reason. 

Didnt think of  being part way through the A-B process.

This was an otherwise  normal  shutdown.

When i went to start again  I get a  "setup incomplete "  notice,   but can't seem to satisfy GS2 in this regard, and cant  pull up the selection of A-B lines, or  complete the process, or start a new process.

What   should I try  now...?