Hi Ron,

'------------------
Hmmm,

Trying out Gary's S suggestion, which works, it seems what is happening is
that, for some reason, if I use rg.text within the UDF, it screws up the
dependency tree. Whereas if I use rg.value (or just rg) within the UDF, it
does not.

Strange.
'------------------

In Charles W's discussion of UDF's, did you see
his comments on the use of cell properties other than .
value or .formula?

See:

Referencing cell formatting properties
http://www.decisionmodels.com/calcsecretsj.htm

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Regards,
Norman