And this right after I posted a success message to build-reports ... Lisp backtrace follows: ad-Orig-split-window(#<window on "*Summary nnml+private:inbox*" 0x7179> 20 nil) (if (interactive-p) (call-interactively (quote ad-Orig-split-window)) (ad-Orig-split-window window chsize horflag)) ) (setq ad-return-value (if (interactive-p) (call-interactively ...) (ad-Orig-split-window window chsize horflag))) ) # bind (horizontally) (let ((horizontally horflag)) (if (null chsize) (setq chsize ...)) (setq ad-return-value (if ... ... ...))) ) (if (eq parent (selected-window)) (let (...) (if ... ...) (popper-bury-output t) (prog1 ... ...)) (let (...) (if ... ...) (setq ad-return-value ...))) ) # bind (parent horizontally the-size) (let ((the-size chsize) (horizontally horflag) (parent ...)) (if (eq parent ...) (let ... ... ... ...) (let ... ... ...))) ) # bind (ad-return-value) (let (ad-return-value) (let (... ... ...) (if ... ... ...)) ad-return-value) ) # bind (horflag chsize window) split-window(#<window on "*Summary nnml+private:inbox*" 0x7179>) # bind (upper other window old-frame target-frame explicit-frame) byte-code("..." [nil explicit-frame target-frame old-frame window last-nonminibuf-frame selected-frame get-buffer buffer bufferp wrong-type-argument pre-display-buffer-function not-this-window-p override-frame display-buffer-function throw done buffer-dedicated-frame dedi frame-live-p window-buffer selected-window display-buffer-1 buffer-name same-window-buffer-names assoc switch-to-buffer same-window-regexps tem car string-match pop-up-frames 0 get-buffer-window special-display-function special-display-buffer-names special-display-regexps frame-selected-window pop-up-frame-function set-window-buffer pop-up-windows frame-property minibuffer only window-dedicated-p frame-root-window split-height-threshold window-min-height split-width-threshold window-min-width unsplittable get-largest-window visible t window-frame window-height window-width window-leftmost-p window-rightmost-p split-window other upper get-lru-window window-parent window-previous-child window-next-child win! dow-pixel-edges window-pixel-height enlarge-window 2 save-selected-window-window ((byte-code "À !«„ !ˆÀ‡" ... 2)) select-window record-buffer] 7) # (catch done ...) # bind (override-frame not-this-window-p buffer) display-buffer(#<buffer "*wide reply to Parson3333(a)aol.com*&quot;&gt; nil nil) # bind (oldbuf buf window frame on-frame not-this-window-p bufname) ad-Orig-pop-to-buffer("*wide reply to Parson3333(a)aol.com*&quot; nil nil) (setq ad-return-value (ad-Orig-pop-to-buffer bufname not-this-window-p on-frame)) ) (if (and parent (not ...)) (progn (popper-bury-output t) (setq ad-return-value ...) (popper-select-window parent) (popper-show-output) (sit-for 0) (setq not-this-window-p nil) (setq ad-return-value ...)) (setq ad-return-value (ad-Orig-pop-to-buffer bufname not-this-window-p on-frame))) ) # bind (parent the-buffer) (let ((the-buffer bufname) (parent ...)) (if (and parent ...) (progn ... ... ... ... ... ... ...) (setq ad-return-value ...))) ) # bind (ad-return-value) (let (ad-return-value) (let (... ...) (if ... ... ...)) ad-return-value) ) # bind (on-frame not-this-window-p bufname) pop-to-buffer("*wide reply to Parson3333(a)aol.com*&quot;) # bind (buffer name) message-pop-to-buffer("*wide reply to Parson3333(a)aol.com*&quot;) # bind (cur from subject date reply-to to cc references message-id follow-to inhibit-point-motion-hooks message-this-is-mail mct never-mct gnus-warning wide to-address) message-reply(nil t) # bind (to-address) message-wide-reply(nil) # bind (newsgroup-p to-list mailing-list to-group to-address pgroup group) # (unwind-protect ...) # bind (gnus-setup-message-winconf gnus-setup-message-buffer gnus-setup-message-article gnus-setup-message-group message-header-setup-hook message-mode-hook gnus-article-reply add-to-list force-news subject yank article-buffer header group post) gnus-post-news(nil "nnml+private:inbox" [22713 "Re: lunch" &quot;Parson3333(a)aol.com&quot; "Mon, 7 Feb 2000 17:45:15 EST" &quot;&lt;70.f23a28.25d0a4fb(a)aol.com&gt;&quot; nil 0 11 "mharnois.workgroup.net inbox:22713" nil] "*Article*" (22713) nil nil) # bind (headers gnus-newsgroup-name force-news yank) gnus-summary-followup((22713) nil) # bind (force-news n) gnus-summary-followup-with-original(nil) # bind (command-debug-status) call-interactively(gnus-summary-followup-with-original) # (condition-case ... . error) # (catch top-level ...)