>>You may try CLEAR PROGRAM, but unfortunately there is no guarantee.
>
>Thanks for the help... unfortunately it does not seem to make a difference. I may need to locate that code in another place.

Yes, that was expected :( I'm not sure how you can proceed. I don't think using a class may be better.

I doubt you can use CLEAR ALL which may help with better probability.

You may try using EXECSCRIPT and different UDFs code while you're debugging.