I get the message "no operator selected".  The only operator choices I have are none and "Mark" -- the one I created.  I have only used one operator.  I think my pro 600 is a late version 25. 

Not sitting in the combine, it has dawned on me that I may be using the wrong reference as it relates to my problem.  On Run 2 I do have 3 levels -- Operator? Farm and Field.  Perhaps "User" is the term I am really talking about.  In the toolbox it is on the operator page where the settings are for english or metric and date, etc.  I know that the 2 choices are none and Mark and when I get problem, I have to go to that page and reselect "Mark" to change the settings back to english from metric.