Conditioned Field

I have a screen with an IO field and another output only field.
 
If the user types a value over a certain limit into the IO field, I set
an indicator 53 in the COBOL on and move a message to the output only
field saying "over limit".
 
On my screen I have an error message on the IO field for indicator 53.  
 
What I want to happen is that the error message triggers AND the "over
limit" shows in the output only field.
 
What actually happens is the error message gets triggered but the output
only field shows a previous value of "under" even though when I display
the value of that field just before the write to the screen the value is
indeed "over limit".
 
What would be causing this?
 
Thanks.
 
Brad