I have a workbook with a "change" event, which updates the formats of other
cells in the workbook. For example, another cell may turn red to indicate
that its value is no longer valid with the new value of the changed cell.

Another workbook links to this workbook, but whenever it is open and
automatic calculation is on, my "on change" macro crashes. I've found that I
can tell when this is going to happen with the "Application.CalculationState"
property. If this property is set to xlCalculating, then the macro is going
to crash and I could bail out, but I still need this macro to complete. I've
already tried Application.Wait and Application.OnTime, but Excel seems to
ignore these when the CalculationState property equals xlCalculating.

According to the call stack, the user definded function in the file that
links to mine is the first thing called, then "[<Non-Basic Code]", then my
change event. Is there any way to force the calculation to complete before
continuing, or pause the macro and allow it to complete, or call the logic of
my change event through a different event?