I'm a newdie so please be patient.
I need to set a check box in a field called BOOKED 2004 if any of many check boxes in a field called BOOKED 2004 LIST are set. I have tried an autocalculation but cannot get it to work. If I change the field properties to standard text, I can enter text in the required field called BOOKED 2004 with Case(not IfEmpty (BOOKED 2004 LIST),"Yes","No"). The "Yes" appears OK but does not disappear or change to "No" if no boxes are checked in BOOKED 2004 LIST.