When I create a category with a free-tagging attribute in my custom Theme - it shows all kinds of javascript in the dropdown.
Also I get this error in firefox:
element is undefined
http://test.cufoundation.ca/sites/test.cufoundation.ca/modules/couloir_s...
Line 934

Should I include some kind of call in my custom theme?

UPDATE: Free-tagging does NOT work in Garland either.