When I go to Options and set Rulers for Top and Left, they appear as expected; but when I shut down AnyRail (Ver 6.39.1)and reopen it, the rulers have disappeared and I have to set them again.
Is this the way it is expected to work, I thought if I set an option it would be kept for all sessions until changed.
They should persist between sessions.
Perhaps you have two copies of AnyRail open and closed the one without rulers after the one were you set the rulers?
Or perhaps you used a registry cleaner? These settings are stored in the Windows Registry.