I have a chart.  It may be based on one of several different queries.  I
am not sure which.  I also can not find out which.  If I right click and
choose "Object Dependencies", it says there are none.  If I open it in
design view, and choose properties, the value for "Record Source" is blank.

All of the queries it may be based on rely on criteria pulled from a
dropdown on a form.  If I open it without that form being open, I get a
prompt for the value, if I open the form, the results change as I change
the selected value of the dropdown.  So it is obviously based on something.

I have done a compact/repair.  What the Hell?

Now, I could make a copy of the database, and start deleting queries
until it fails, but that is not the point.

Access 2003 SP2

Phil