Mail doesn't correct spelling
I'm running the latest Mavericks.
When I compose an email, misspelled words do not automatically correct (as they do in TextEdit and other apps).
I have gone into Mail Preferences:Composing and chosen "Check spelling as I type". It doesn't.
I've also gone into Mail's Edit menu:Spelling & Grammar:Check Spelling and and select "As I type". It will underline in red a misspelled word, but it won't correct it.
How do I get Auto-Correct to work in Mail?
MacBook Pro with Retina display, OS X Mavericks (10.9.1)