Hi Charles,
It depends on where you are in the world and what "locale" you have selected in LC (File/Form Properties).
If we set the "Locale" to English (Ireland). where we are located, the spell checker will not work.
For example the "English (United Kingdom)" spell checker works, so that is what we set our locale to for functioning spell checking. The spell checker does not work for all locales.
Check out for the warnings:
Good luck,
N.