OK..in config I have "turn section off" checked. No problem.

How do I delete a previously existing boundary? That may have been a problem also-never did that.

So, I'd have to spray an entire closed-circle (or rectangle in most cases) loop? Maybe that was my problem. I was leaving that "4th side" open....not spraying there until last pass in field. Does it have to be a complete pass back to the point of origination?

Thanks