Hello there. I just found a possible bug in ediff. ediff-version "2.71" ediff-date "July 24, 1998" when trying to use ediff with the latest Xemacs (b60) and with the following options set: (setq ediff-use-toolbar-p t) (setq ediff-window-setup-function 'ediff-setup-windows-plain) (setq ediff-use-faces t) (setq ediff-highlight-all-diffs t) When I click on the "next difference" toolbar icon I get the following error: Signaling: (error "ediff-toolbar-next-difference: This command runs in Ediff Control Buffer only!") signal(error ("ediff-toolbar-next-difference: This command runs in Ediff Control Buffer only!")) cerror("%S: This command runs in Ediff Control Buffer only!" ediff-toolbar-next-difference) apply(cerror ("%S: This command runs in Ediff Control Buffer only!" ediff-toolbar-next-difference)) error("%S: This command runs in Ediff Control Buffer only!" ediff-toolbar-next-difference) ediff-next-difference(1) #<compiled-function nil "...(7)" [nil ediff-grab-mouse ediff-next-difference 1] 2 nil nil>() call-interactively(ediff-toolbar-next-difference) Does anybody know how to fix this ? Enrico. P.S. please reply to me via email. I'm not subscribed to xemacs-beta. Thanks.