When using the Monaco font with anti-aliasing disabled the bottom of some characters, such as '[', are not visible.
I didn't have this problem with 22.3.
Here's a snippet of my .emacs file that should exhibit the problem.
;; turn off anti-aliasing (setq mac-allow-anti-aliasing nil)
;; xcode font (set-face-attribute 'default nil :family "monaco" :height 95)
In GNU Emacs 23.1.1 (i386-apple-darwin9.7.0, NS apple-appkit-949.46)
of 2009-07-30 on bluesilver.local Windowing system distributor `Apple', version 10.3.949 configured using `configure '--with-ns''
Important settings: value of $LC_ALL: nil value of $LC_COLLATE: nil
value of $LC_CTYPE: nil value of $LC_MESSAGES: nil value of $LC_MONETARY: nil value of $LC_NUMERIC: nil value of $LC_TIME: nil value of $LANG: nil value of $XMODIFIERS: nil locale-coding-system: nil
Major mode: Lisp
Minor modes in effect: shell-dirtrack-mode: t tooltip-mode: t mouse-wheel-mode: t file-name-shadow-mode: t global-font-lock-mode: t font-lock-mode: t
global-auto-composition-mode: t auto-composition-mode: t auto-encryption-mode: t auto-compression-mode: t line-number-mode: t
Recent messages: kmacro-call-macro: No kbd macro has been defined nil [2 times] Saving file /Users/anthonythibault/.emacs.d/init.el... Wrote /Users/anthonythibault/.emacs.d/init.el
nil [5 times] Saving file /Users/anthonythibault/.emacs.d/init.el... Wrote /Users/anthonythibault/.emacs.d/init.el Saving file /Users/anthonythibault/.emacs.d/init.el... Wrote /Users/anthonythibault/.emacs.d/init.el
Making completion list...
[Prev in Thread]
[Next in Thread]
bug#3986: 23.1; Bottom of characters are cut off,