Thanks Alansidman,
But I just can't get this to work. When I view my form, all I get is the '#NAME?' error.
I have tried the following variations:
=IF([ME].[TBDUEDATE]<Date(),"Overdue","")
=IF([TBDUEDATE]<Date(),"Overdue","")
=IF([FORMNAME].[TBDUEDATE]<Date(),"Overdue","")
Any ideas how...