question about case in key maps

XEmacs 21.2 "Demeter" [Lucid] (sparc-sun-solaris2.5) of Mon Mar 15 1999 on ahoward I posted this question to comp.emacs.xemacs, but I thought this mailing list might be a good place for it, also. I get this behavior with XEmacs 21.2b13, and I think also with some version of XEmacs 20.0. As described below, I know how to fix this in GNU Emacs, but not in XEmacs. Is this difference in the two emacsen a bug or feature? I'm having a problem defining a keymap in XEmacs; the quick version is: I want the key "a" to be bound to something, and I want "A" to be undefined. When I try to carry this out, though, hitting "A" just does whatever "a" is bound to. Details: I initialize the keymap with (defvar my-map nil) ;; initialize the keymap (define-prefix-command 'my-map) ;; initialize the keymap (define-key my-map "a" 'self-insert-command) ;; bind "a" I check to see how "A" is bound: (lookup-key my-map "A") Then I test it: I bind backquote to my-map and see what happens. (global-set-key "`" 'my-map) Now hitting `a inserts a. Hitting `A inserts a. Hitting `b gives the message ` b is not defined. How can I get `A to act like `b? I've tried (define-key my-map "A" 'undefined) and (suppress-keymap my-map) Each of these does what I want with GNU Emacs, but not with XEmacs. -- John H. Palmieri palmieri.2(a)nd.edu ..I must be a VETERINARIAN..