Your change of revision 1.43 of 2007/06/12 19:28:27 +0 of xemacs packages `viper.el' (not even noted in `ChangeLog' there) changes `interactive' specifications in `describe-key{,-briefly}' advices so that `call-interactively' passes 3 args to them. In xemacs, both 21.4 and 21.5, `describe-key' takes 1 arg, `describe-key-briefly' takes 2 args, with 1 optional. So after loading the changed file when trying to call these functions, `wrong-number-of-arguments' errors are signalled in backtrace like this: #<compiled-function (key) "...(9)" [key ad-return-value nil ad-Orig-describe-key] 3 "$ad-doc: describe-key$" (let (key) (setq key ...) (list key ... ...))>([#<keypress-event control-S>] 1 nil) call-interactively(describe-key) Please fix. _______________________________________________ XEmacs-Beta mailing list XEmacs-Beta(a)xemacs.org http://calypso.tux.org/cgi-bin/mailman/listinfo/xemacs-beta