Ah, I f it were me, I'd just open the report in design view and delete the
old control, then drag the new one down from the field picker.
The alternative is to open the control's property box and change the name
and also the label. The data source is corrected for you by Access.
I just went into Northwinds and changed the name of one of my fields. The
report that included that field was updated with the new field name as the
control source. The only thing that did not change is the label and the
name of the field.
Since many people modify the lables, Access does not simply write over them
when you change a field's name in the table.