Turns out, ams-tex-mode didn’t work in Aquamacs 3.0 (since we upgraded to the latest AUCTeX). That’s been fixed now. Thanks to Alby Fisher for a late-night complaint that led to a bug fix! -- http://aquamacs.org -- Aquamacs: Emacs on Mac OS X http://aquamacs.org/donate -- Could we help you? Return the favor and support the Aquamacs Project!