Jan Vroonhof <vroonhof(a)math.ethz.ch&gt; writes: I'm impressed. Ironically, it doesn't pick one thing, and that one is not really Custom-related: (put 'narrow-to-page 'disabled nil) I have no idea how that leaked into my `.xemacs-custom', but I'm sure I didn't put it there. Oh, now I see: (defun enable-command (command) "Allow COMMAND to be executed without special confirmation from now on. The user's `custom-file' is altered so that this will apply to future sessions." ... (defun disable-command (command) "Require special confirmation to execute COMMAND from now on. The user's `custom-file' is altered so that this will apply to future sessions." ... And, if you look real hard: 1997-09-18 Colin Rafferty <craffert(a)ml.com&gt; * prim/novice.el (disable-command): Made it modify `custom-file' instead of `user-init-file'. Stop multiple disable/enable-command calls from adding extra newlines. Not that I blame Colin -- the patch must have made sense at the time.