Upon changing to a major mode which adds extra menu items to the menu bar accross the top of the window, these items are added but have no functionality. In particular, when clicking on them a very small menu drops down as expected. However, this menu is empty and only a very short height. This is only for entries added by a major mode (including AuCTeX and GNUS) for me. The standard EMACS menu items: File, Edit, ...,Help are all functional. As I write this in Mail mode, the 'Headers' and 'Mail' menu items are non-functional. In GNU Emacs 23.1.1 (x86_64-pc-linux-gnu, GTK+ Version 2.18.2) of 2009-10-15 on yellow, modified by Debian Windowing system distributor `The X.Org Foundation', version 11.0.10604000 configured using `configure '--build=x86_64-linux-gnu' '--host=x86_64-linux-gnu' '--prefix=/usr' '--sharedstatedir=/var/lib' '--libexecdir=/usr/lib' '--localstatedir=/var/lib' '--infodir=/usr/share/info' '--mandir=/usr/share/man' '--with-pop=yes' '--enable-locallisppath=/etc/emacs23:/etc/emacs:/usr/local/share/emacs/23.1/site-lisp:/usr/local/share/emacs/site-lisp:/usr/share/emacs/23.1/site-lisp:/usr/share/emacs/site-lisp:/usr/share/emacs/23.1/leim' '--with-x=yes' '--with-x-toolkit=gtk' '--with-toolkit-scroll-bars' 'build_alias=x86_64-linux-gnu' 'host_alias=x86_64-linux-gnu' 'CFLAGS=-DDEBIAN -g -O2' 'LDFLAGS=-g' 'CPPFLAGS='' 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: en_US.UTF-8 value of $XMODIFIERS: nil locale-coding-system: utf-8-unix default-enable-multibyte-characters: t Major mode: LaTeX Minor modes in effect: tooltip-mode: t tool-bar-mode: t mouse-wheel-mode: t menu-bar-mode: t file-name-shadow-mode: t global-font-lock-mode: t font-lock-mode: t blink-cursor-mode: t global-auto-composition-mode: t auto-composition-mode: t auto-encryption-mode: t auto-compression-mode: t line-number-mode: t transient-mark-mode: t Recent input: C-x C-f D o c M a A L l 2 t C-c C-c M-> C-p C-p C-p C-e SPC SPC Recent messages: Loading debian-ispell...done Loading /var/cache/dictionaries-common/emacsen-ispell-dicts.el (source)...done Loading /etc/emacs/site-start.d/50dictionaries-common.el (source)...done Loading /home/dear/.emacs-Macaulay2... Loading /usr/share/emacs/site-lisp/M2-init.el (source)...done Loading /home/dear/.emacs-Macaulay2...done For information about GNU Emacs and the GNU system, type C-h C-a. Mark set Applying style hooks... done Mark set