I have a drop-down list box on sheet A of a workbook that triggers the
_change() routine of another drop-down list box on sheet B, BEFORE triggering
its own _change() routine. The list boxes do not have the same name. It only
happens when both lists have a selected item and one is changed. I have used
the "Caller" property which tells me that an error called the routine but I
can't find any link between these two rotines, their linked cells or fill
cells. Can anyone help explain this or how I can interrogate the system to
find out its path?