I have written a VBA Excel Add-in that works fine on my development
machine running XP pro,
using Excel 2002 installed as part of Office 10. I have another
machine running XP Home edition
with the same Office 10 and Excel running. On that machine some
functions won't run because
it can't find the libraries with the built-in string functions, e.g.,
Mid(), Trim(), UCase(). I did
a reinstall/repair on Office, but no help.

Any thoughts?

TIA

Ed