Thanks R, Is that going to effect other apps like Word? Mail has this particularly annoying one where a little box comes up... who knows maybe you are right.
Ok Just tested used word darln. With box unchecked ok, that little rectangle does not come up, and it does not effect Word. Word seem to override with it's own engine. Even text edit, not effected. What else does it effect besides Mail?
That rectangle is so pernicious in Mail, you often type many peoples names and it always mis guesses names.