This bug has endured through many emacs releases. In GNU Emacs 24.3.1 (powerpc-ibm-aix6.1.0.0, X toolkit, Xaw3d scroll bars) of 2014-01-08 on adatx028 Windowing system distributor `The Cygwin/X Project', version 11.0.11600000 Configured using: `configure '--prefix=/mtg/tool/emacs-24.3.B' '--exec-prefix=/mtg/tool/emacs-24.3.B/powerpc-AIX6.1' '--mandir=/mtg/tool/emacs-24.3.B/man' '--docdir=/mtg/tool/emacs-24.3.B/doc' '--htmldir=/mtg/tool/emacs-24.3.B/html' '--with-wide-int' '--enable-locallisppath=/mtg/tool/lisp' 'CC=gcc' 'CFLAGS=-O3 -pipe -std=gnu99' 'LDFLAGS=-L/mtg/tool/emacs-24.3.B/powerpc-AIX6.1/lib -L/mtg/tool/powerpc-AIX6.1/lib -L/usr/lib -Wl,-bnoipath,-blibpath:/mtg/tool/emacs-24.3.B/powerpc-AIX6.1/lib:/mtg/tool/powerpc-AIX6.1/lib:/usr/lib' 'LIBS=-lz -lm' 'CPPFLAGS=-I../lib -I/mtg/tool//include -I/mtg/tool/include -I/mtg/tool/include/libxml -DLIBS_TERMCAP=-lncurses'' Important settings: value of $LANG: C locale-coding-system: iso-latin-1-unix default enable-multibyte-characters: t Major mode: GNUmakefile Minor modes in effect: shell-dirtrack-mode: t diff-auto-refine-mode: t global-semanticdb-minor-mode: t global-semantic-idle-scheduler-mode: t semantic-idle-scheduler-mode: t show-paren-mode: t semantic-mode: t msb-mode: t minibuffer-electric-default-mode: t iswitchb-mode: t icomplete-mode: t display-time-mode: t desktop-save-mode: t cua-mode: t auto-insert-mode: t auto-image-file-mode: t tooltip-mode: t mouse-wheel-mode: t tool-bar-mode: t menu-bar-mode: t file-name-shadow-mode: t global-font-lock-mode: t font-lock-mode: t blink-cursor-mode: t auto-composition-mode: t auto-encryption-mode: t auto-compression-mode: t line-number-mode: t transient-mark-mode: t Recent input: a C-n C-n C-n C-n M-b M-b M-d a e t n a C-a C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-p C-u C-p C-u C-p C-u C-l C-n M-f M-f M-f M-f M-f M-b M-$ M-f e C-p C-p C-p C-a C-SPC C-n C-n C-n C-n M-w C-x o C-x o C-SPC C-p C-p C-p C-p C-y C-p M-q C-n C-n C-n C-n C-n C-n C-n C-u C-p C-u C-p C-p C-p C-o C-o T h i s SPC b C-/ C-a C-k C-k C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-o T h i s SPC b u g SPC h a s SPC e n d u r e d SPC f o r SPC m a n y SPC f v e r s i o n SPC o f SPC e m a c s . M-b M-b M-b M-b M-b M-d t h r u o u g h C-e M-b M-b M-b M-f s C-e M-b M-b M-b M-d M-d M-d e m a c s SPC r e l e a s e s C-e C-l C-u C-p C-u C-l C-u C-p C-p C-p C-p C-n C-p C-u C-v C-u C-v C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-l C-u C-v C-u C-v C-u C-v C-v C-l C-v C-v M-v M-v M-v M-< C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-p C-p C-p C-p C-p C-p C-SPC C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n M-w C-c C-k y e s C-x b P Recent messages: Undo! up-list: Scan error: "Unbalanced parentheses", 1022, 1 Mark saved where search started Auto-saving...done Starting new Ispell process [aspell::default] ... apply: Searching for program: no such file or directory, aspell Mark set [3 times] Undo! Mark set [2 times] Auto-saving...done Load-path shadows: /home/trudeajo/.emacs.d/lisp/make-mode hides /mtg/tool/emacs-24.3.B/share/emacs/24.3/lisp/progmodes/make-mode /mtg/tool/lisp/org-odt hides /mtg/tool/emacs-24.3.B/share/emacs/24.3/lisp/org/org-odt /mtg/tool/lisp/org-colview hides /mtg/tool/emacs-24.3.B/share/emacs/24.3/lisp/org/org-colview /mtg/tool/lisp/org-indent hides /mtg/tool/emacs-24.3.B/share/emacs/24.3/lisp/org/org-indent /mtg/tool/lisp/org-macs hides /mtg/tool/emacs-24.3.B/share/emacs/24.3/lisp/org/org-macs /mtg/tool/lisp/org-docview hides /mtg/tool/emacs-24.3.B/share/emacs/24.3/lisp/org/org-docview /mtg/tool/lisp/ob-lilypond hides /mtg/tool/emacs-24.3.B/share/emacs/24.3/lisp/org/ob-lilypond /mtg/tool/lisp/org-rmail hides /mtg/tool/emacs-24.3.B/share/emacs/24.3/lisp/org/org-rmail /mtg/tool/lisp/org-datetree hides /mtg/tool/emacs-24.3.B/share/emacs/24.3/lisp/org/org-datetree /mtg/tool/lisp/org-ascii hides /mtg/tool/emacs-24.3.B/share/emacs/24.3/lisp/org/org-ascii /mtg/tool/lisp/org-lparse hides /mtg/tool/emacs-24.3.B/share/emacs/24.3/lisp/org/org-lparse /mtg/tool/lisp/org-vm hides /mtg/tool/emacs-24.3.B/share/emacs/24.3/lisp/org/org-vm /mtg/tool/lisp/ob-awk hides /mtg/tool/emacs-24.3.B/share/emacs/24.3/lisp/org/ob-awk /mtg/tool/lisp/org-pcomplete hides /mtg/tool/emacs-24.3.B/share/emacs/24.3/lisp/org/org-pcomplete /mtg/tool/lisp/ob-python hides /mtg/tool/emacs-24.3.B/share/emacs/24.3/lisp/org/ob-python /mtg/tool/lisp/ob-ref hides /mtg/tool/emacs-24.3.B/share/emacs/24.3/lisp/org/ob-ref /mtg/tool/lisp/org-habit hides /mtg/tool/emacs-24.3.B/share/emacs/24.3/lisp/org/org-habit /mtg/tool/lisp/org-table hides /mtg/tool/emacs-24.3.B/share/emacs/24.3/lisp/org/org-table /mtg/tool/lisp/ob-perl hides /mtg/tool/emacs-24.3.B/share/emacs/24.3/lisp/org/ob-perl /mtg/tool/lisp/ob-clojure hides /mtg/tool/emacs-24.3.B/share/emacs/24.3/lisp/org/ob-clojure /mtg/tool/lisp/ob-eval hides /mtg/tool/emacs-24.3.B/share/emacs/24.3/lisp/org/ob-eval /mtg/tool/lisp/ob-emacs-lisp hides /mtg/tool/emacs-24.3.B/share/emacs/24.3/lisp/org/ob-emacs-lisp /mtg/tool/lisp/ob-asymptote hides /mtg/tool/emacs-24.3.B/share/emacs/24.3/lisp/org/ob-asymptote /mtg/tool/lisp/ob-lisp hides /mtg/tool/emacs-24.3.B/share/emacs/24.3/lisp/org/ob-lisp /mtg/tool/lisp/ob-lob hides /mtg/tool/emacs-24.3.B/share/emacs/24.3/lisp/org/ob-lob /mtg/tool/lisp/org-icalendar hides /mtg/tool/emacs-24.3.B/share/emacs/24.3/lisp/org/org-icalendar /mtg/tool/lisp/org-version hides /mtg/tool/emacs-24.3.B/share/emacs/24.3/lisp/org/org-version /mtg/tool/lisp/ob-gnuplot hides /mtg/tool/emacs-24.3.B/share/emacs/24.3/lisp/org/ob-gnuplot /mtg/tool/lisp/org-remember hides /mtg/tool/emacs-24.3.B/share/emacs/24.3/lisp/org/org-remember /mtg/tool/lisp/org-w3m hides /mtg/tool/emacs-24.3.B/share/emacs/24.3/lisp/org/org-w3m /mtg/tool/lisp/org-mew hides /mtg/tool/emacs-24.3.B/share/emacs/24.3/lisp/org/org-mew /mtg/tool/lisp/ob-keys hides /mtg/tool/emacs-24.3.B/share/emacs/24.3/lisp/org/ob-keys /mtg/tool/lisp/org-bibtex hides /mtg/tool/emacs-24.3.B/share/emacs/24.3/lisp/org/org-bibtex /mtg/tool/lisp/ob-haskell hides /mtg/tool/emacs-24.3.B/share/emacs/24.3/lisp/org/ob-haskell /mtg/tool/lisp/org-ctags hides /mtg/tool/emacs-24.3.B/share/emacs/24.3/lisp/org/org-ctags /mtg/tool/lisp/ob-maxima hides /mtg/tool/emacs-24.3.B/share/emacs/24.3/lisp/org/ob-maxima /mtg/tool/lisp/ob-C hides /mtg/tool/emacs-24.3.B/share/emacs/24.3/lisp/org/ob-C /mtg/tool/lisp/ob-dot hides /mtg/tool/emacs-24.3.B/share/emacs/24.3/lisp/org/ob-dot /mtg/tool/lisp/org-mhe hides /mtg/tool/emacs-24.3.B/share/emacs/24.3/lisp/org/org-mhe /mtg/tool/lisp/ob-js hides /mtg/tool/emacs-24.3.B/share/emacs/24.3/lisp/org/ob-js /mtg/tool/lisp/org-crypt hides /mtg/tool/emacs-24.3.B/share/emacs/24.3/lisp/org/org-crypt /mtg/tool/lisp/org-info hides /mtg/tool/emacs-24.3.B/share/emacs/24.3/lisp/org/org-info /mtg/tool/lisp/ob-matlab hides /mtg/tool/emacs-24.3.B/share/emacs/24.3/lisp/org/ob-matlab /mtg/tool/lisp/ob-fortran hides /mtg/tool/emacs-24.3.B/share/emacs/24.3/lisp/org/ob-fortran /mtg/tool/lisp/org-protocol hides /mtg/tool/emacs-24.3.B/share/emacs/24.3/lisp/org/org-protocol /mtg/tool/lisp/ob-scala hides /mtg/tool/emacs-24.3.B/share/emacs/24.3/lisp/org/ob-scala /mtg/tool/lisp/org-wl hides /mtg/tool/emacs-24.3.B/share/emacs/24.3/lisp/org/org-wl /mtg/tool/lisp/ob-ditaa hides /mtg/tool/emacs-24.3.B/share/emacs/24.3/lisp/org/ob-ditaa /mtg/tool/lisp/org-jsinfo hides /mtg/tool/emacs-24.3.B/share/emacs/24.3/lisp/org/org-jsinfo /mtg/tool/lisp/ob-picolisp hides /mtg/tool/emacs-24.3.B/share/emacs/24.3/lisp/org/ob-picolisp /mtg/tool/lisp/org-entities hides /mtg/tool/emacs-24.3.B/share/emacs/24.3/lisp/org/org-entities /mtg/tool/lisp/org-mks hides /mtg/tool/emacs-24.3.B/share/emacs/24.3/lisp/org/org-mks /mtg/tool/lisp/org-eshell hides /mtg/tool/emacs-24.3.B/share/emacs/24.3/lisp/org/org-eshell /mtg/tool/lisp/org-clock hides /mtg/tool/emacs-24.3.B/share/emacs/24.3/lisp/org/org-clock /mtg/tool/lisp/ob-sql hides /mtg/tool/emacs-24.3.B/share/emacs/24.3/lisp/org/ob-sql /mtg/tool/lisp/org-publish hides /mtg/tool/emacs-24.3.B/share/emacs/24.3/lisp/org/org-publish /mtg/tool/lisp/ob-sqlite hides /mtg/tool/emacs-24.3.B/share/emacs/24.3/lisp/org/ob-sqlite /mtg/tool/lisp/ob-java hides /mtg/tool/emacs-24.3.B/share/emacs/24.3/lisp/org/ob-java /mtg/tool/lisp/org-archive hides /mtg/tool/emacs-24.3.B/share/emacs/24.3/lisp/org/org-archive /mtg/tool/lisp/org-src hides /mtg/tool/emacs-24.3.B/share/emacs/24.3/lisp/org/org-src /mtg/tool/lisp/org-attach hides /mtg/tool/emacs-24.3.B/share/emacs/24.3/lisp/org/org-attach /mtg/tool/lisp/ob-css hides /mtg/tool/emacs-24.3.B/share/emacs/24.3/lisp/org/ob-css /mtg/tool/lisp/ob-ocaml hides /mtg/tool/emacs-24.3.B/share/emacs/24.3/lisp/org/ob-ocaml /mtg/tool/lisp/org-compat hides /mtg/tool/emacs-24.3.B/share/emacs/24.3/lisp/org/org-compat /mtg/tool/lisp/org-taskjuggler hides /mtg/tool/emacs-24.3.B/share/emacs/24.3/lisp/org/org-taskjuggler /mtg/tool/lisp/ob-exp hides /mtg/tool/emacs-24.3.B/share/emacs/24.3/lisp/org/ob-exp /mtg/tool/lisp/org-agenda hides /mtg/tool/emacs-24.3.B/share/emacs/24.3/lisp/org/org-agenda /mtg/tool/lisp/org-timer hides /mtg/tool/emacs-24.3.B/share/emacs/24.3/lisp/org/org-timer /mtg/tool/lisp/org-mac-message hides /mtg/tool/emacs-24.3.B/share/emacs/24.3/lisp/org/org-mac-message /mtg/tool/lisp/org-inlinetask hides /mtg/tool/emacs-24.3.B/share/emacs/24.3/lisp/org/org-inlinetask /mtg/tool/lisp/ob-mscgen hides /mtg/tool/emacs-24.3.B/share/emacs/24.3/lisp/org/ob-mscgen /mtg/tool/lisp/ob-screen hides /mtg/tool/emacs-24.3.B/share/emacs/24.3/lisp/org/ob-screen /mtg/tool/lisp/org-freemind hides /mtg/tool/emacs-24.3.B/share/emacs/24.3/lisp/org/org-freemind /mtg/tool/lisp/ob-table hides /mtg/tool/emacs-24.3.B/share/emacs/24.3/lisp/org/ob-table /mtg/tool/lisp/ob-octave hides /mtg/tool/emacs-24.3.B/share/emacs/24.3/lisp/org/ob-octave /mtg/tool/lisp/ob hides /mtg/tool/emacs-24.3.B/share/emacs/24.3/lisp/org/ob /mtg/tool/lisp/org-footnote hides /mtg/tool/emacs-24.3.B/share/emacs/24.3/lisp/org/org-footnote /mtg/tool/lisp/org-install hides /mtg/tool/emacs-24.3.B/share/emacs/24.3/lisp/org/org-install /mtg/tool/lisp/ob-shen hides /mtg/tool/emacs-24.3.B/share/emacs/24.3/lisp/org/ob-shen /mtg/tool/lisp/org-capture hides /mtg/tool/emacs-24.3.B/share/emacs/24.3/lisp/org/org-capture /mtg/tool/lisp/org-bbdb hides /mtg/tool/emacs-24.3.B/share/emacs/24.3/lisp/org/org-bbdb /mtg/tool/lisp/org-id hides /mtg/tool/emacs-24.3.B/share/emacs/24.3/lisp/org/org-id /mtg/tool/lisp/org-exp-blocks hides /mtg/tool/emacs-24.3.B/share/emacs/24.3/lisp/org/org-exp-blocks /mtg/tool/lisp/org-feed hides /mtg/tool/emacs-24.3.B/share/emacs/24.3/lisp/org/org-feed /mtg/tool/lisp/ob-comint hides /mtg/tool/emacs-24.3.B/share/emacs/24.3/lisp/org/ob-comint /mtg/tool/lisp/ob-plantuml hides /mtg/tool/emacs-24.3.B/share/emacs/24.3/lisp/org/ob-plantuml /mtg/tool/lisp/ob-latex hides /mtg/tool/emacs-24.3.B/share/emacs/24.3/lisp/org/ob-latex /mtg/tool/lisp/org-plot hides /mtg/tool/emacs-24.3.B/share/emacs/24.3/lisp/org/org-plot /mtg/tool/lisp/org-irc hides /mtg/tool/emacs-24.3.B/share/emacs/24.3/lisp/org/org-irc /mtg/tool/lisp/ob-scheme hides /mtg/tool/emacs-24.3.B/share/emacs/24.3/lisp/org/ob-scheme /mtg/tool/lisp/org-mobile hides /mtg/tool/emacs-24.3.B/share/emacs/24.3/lisp/org/org-mobile /mtg/tool/lisp/org-docbook hides /mtg/tool/emacs-24.3.B/share/emacs/24.3/lisp/org/org-docbook /mtg/tool/lisp/ob-sh hides /mtg/tool/emacs-24.3.B/share/emacs/24.3/lisp/org/ob-sh /mtg/tool/lisp/ob-ledger hides /mtg/tool/emacs-24.3.B/share/emacs/24.3/lisp/org/ob-ledger /mtg/tool/lisp/ob-org hides /mtg/tool/emacs-24.3.B/share/emacs/24.3/lisp/org/ob-org /mtg/tool/lisp/org-exp hides /mtg/tool/emacs-24.3.B/share/emacs/24.3/lisp/org/org-exp /mtg/tool/lisp/org-element hides /mtg/tool/emacs-24.3.B/share/emacs/24.3/lisp/org/org-element /mtg/tool/lisp/org-special-blocks hides /mtg/tool/emacs-24.3.B/share/emacs/24.3/lisp/org/org-special-blocks /mtg/tool/lisp/org-faces hides /mtg/tool/emacs-24.3.B/share/emacs/24.3/lisp/org/org-faces /mtg/tool/lisp/org-xoxo hides /mtg/tool/emacs-24.3.B/share/emacs/24.3/lisp/org/org-xoxo /mtg/tool/lisp/org-beamer hides /mtg/tool/emacs-24.3.B/share/emacs/24.3/lisp/org/org-beamer /mtg/tool/lisp/org-html hides /mtg/tool/emacs-24.3.B/share/emacs/24.3/lisp/org/org-html /mtg/tool/lisp/ob-R hides /mtg/tool/emacs-24.3.B/share/emacs/24.3/lisp/org/ob-R /mtg/tool/lisp/org-mouse hides /mtg/tool/emacs-24.3.B/share/emacs/24.3/lisp/org/org-mouse /mtg/tool/lisp/ob-io hides /mtg/tool/emacs-24.3.B/share/emacs/24.3/lisp/org/ob-io /mtg/tool/lisp/ob-tangle hides /mtg/tool/emacs-24.3.B/share/emacs/24.3/lisp/org/ob-tangle /mtg/tool/lisp/org hides /mtg/tool/emacs-24.3.B/share/emacs/24.3/lisp/org/org /mtg/tool/lisp/ob-calc hides /mtg/tool/emacs-24.3.B/share/emacs/24.3/lisp/org/ob-calc /mtg/tool/lisp/ob-ruby hides /mtg/tool/emacs-24.3.B/share/emacs/24.3/lisp/org/ob-ruby /mtg/tool/lisp/ob-sass hides /mtg/tool/emacs-24.3.B/share/emacs/24.3/lisp/org/ob-sass /mtg/tool/lisp/org-list hides /mtg/tool/emacs-24.3.B/share/emacs/24.3/lisp/org/org-list /mtg/tool/lisp/org-gnus hides /mtg/tool/emacs-24.3.B/share/emacs/24.3/lisp/org/org-gnus /mtg/tool/lisp/org-latex hides /mtg/tool/emacs-24.3.B/share/emacs/24.3/lisp/org/org-latex /mtg/tool/lisp/org-loaddefs hides /mtg/tool/emacs-24.3.B/share/emacs/24.3/lisp/org/org-loaddefs Features: (ispell shadow sort tar-mode network-stream starttls url-http tls url-gw url-cache url-auth url url-proxy url-privacy url-expand url-methods url-history url-cookie url-domsuf url-util mailcap finder-inf package goto-addr emacsbug message idna rfc822 mml mml-sec mm-decode mm-bodies mm-encode mail-parse rfc2231 mailabbrev gmm-utils mailheader sendmail rfc2047 rfc2045 ietf-drums mail-utils derived add-log imenu diff m4-mode po reposition vc vc-dispatcher terminal ehelp electric dirtrack cus-edit bookmark pp image-mode w3m-hist w3m-fb bookmark-w3m w3m-ems wid-edit w3m-ccl ccl w3m-favicon w3m-image w3m-proc w3m-util semantic/html sgml-mode semantic/edit pcmpl-gnu mail-extr find-dired grep help-mode pcmpl-unix compile align-local align tabify man info dabbrev sh-script smie executable tramp-cache tramp-sh ange-ftp tramp-ftp tramp tramp-compat tramp-loaddefs cl-macs cua-rect rect semantic/tag-write org-wl org-w3m org-vm org-rmail org-mhe org-mew org-irc org-jsinfo org-infojs org-html org-exp ob-exp org-exp-blocks org-agenda org-info org-gnus org-docview org-bibtex bibtex org-bbdb org ob-tangle ob-ref ob-lob ob-table org-footnote org-src ob-comint ob-keys org-pcomplete org-list org-faces org-entities noutline outline org-version ob-emacs-lisp ob org-compat org-macs ob-eval org-loaddefs format-spec find-func cal-menu calendar cal-loaddefs bs shell pcomplete comint ansi-color conf-mode misearch multi-isearch semantic/bovine/make semantic/bovine/make-by make-mode parse-time smerge-mode vc-cvs diff-mode easy-mmode asm-mode semantic/tag-file inversion semantic/db-file data-debug cedet-files semantic/bovine/c semantic/decorate/include semantic/decorate/mode semantic/decorate pulse hideif semantic/db-find semantic/db-ref semantic/bovine/c-by semantic/lex-spp semantic/bovine/gcc semantic/dep semantic/bovine semantic/analyze semantic/sort semantic/scope semantic/analyze/fcn cc-langs cl cc-local xcscope ring cc-mode cc-fonts cc-guess cc-menus cc-cmds cc-styles cc-align cc-engine cc-vars cc-defs dired-local epg epg-config view-local autorevert view icvs thingatpt dired-aux dired-x dired jka-compr saveplace semantic/db-mode semantic/db gv eieio-base semantic/idle semantic/format ezimage semantic/tag-ls semantic/find semantic/ctxt uniquify warnings advice help-fns cl-lib advice-preload paren semantic/util-modes semantic/util semantic semantic/tag semantic/lex semantic/fw mode-local msb minibuf-eldef iswitchb icomplete time desktop cua-base autoinsert image-file allout cus-start cus-load org-install easymenu ecb-autoloads ffap url-parse auth-source eieio byte-opt bytecomp byte-compile cconv gnus-util mm-util mail-prsvr password-cache url-vars bbdb timezone bbdb-autoloads cedet loaddefs-local ps-ccrypt path-local vc-git time-date tooltip ediff-hook vc-hooks lisp-float-type mwheel x-win x-dnd tool-bar dnd fontset image regexp-opt fringe tabulated-list newcomment lisp-mode register page menu-bar rfn-eshadow timer select scroll-bar mouse jit-lock font-lock syntax facemenu font-core frame cham georgian utf-8-lang misc-lang vietnamese tibetan thai tai-viet lao korean japanese hebrew greek romanian slovak czech european ethiopic indian cyrillic chinese case-table epa-hook jka-cmpr-hook help simple abbrev minibuffer loaddefs button faces cus-face macroexp files text-properties overlay sha1 md5 base64 format env code-pages mule custom widget hashtable-print-readable backquote make-network-process dynamic-setting x-toolkit x multi-tty emacs)