I have a spreadsheet containing a macro that seems to work fine but if I run
the macro (one or many times) and then close the spreadsheet (save or not -
doesn't matter) I get an error 800a01a8. The macro triggers off of a double
click and basically is a substitute for the validation feature (providing a
combobox of values to select from w/o having to depend on each cell having
been set up with validation).

Does anyone know what this error is or where I can look it up?

Thanks,
Will