Spell check or way to disable contextual menu?

Hello,

I'm evaluating CKEditor with regard to the specific needs of a site I am working on, and I cannot figure out how to enable to the spell checking support, and cannot find any documentation on the subject.

The "spell checker" button is in my toolbar, but when I click it nothing happens.

Alternately, I would appreciate a way to disable the contextual menu and allow use of the browser/OS provided spell check, since this site needs very few of the impressive features provided by CKEditor. (A particular boon for Mac users who get an awesome right click menu in text editors with all kinds of useful text services, including dictionary and spell checker - far beyond the CKEditor replacement menu.)

Thanks!