When I type until I reach the bottom right of the screen and keep going, Emacs often types in reverse, producing useless gibberish. This happens on Win 7 and Debian, even with a blank .emacs file. Usually I only stumble over this when typing with extremely large font size on a 1920x1200 monitor, with 8-12 lines fitting on the screen. But it can happen with as many as 20 lines. Here's a demo video of the behavior on Debian with a blank .emacs http://youtu.be/CYLD8jO3aPs Thanks, Trevor ------- ****** Below are the verbose readouts produced and requested by m-x report-emacs-bug on both systems ******* *************** Debian *************** In GNU Emacs 23.2.1 (x86_64-pc-linux-gnu, GTK+ Version 2.20.1) of 2010-12-11 on brahms, modified by Debian Windowing system distributor `The X.Org Foundation', version 11.0.10707000 configured using `configure '--build' 'x86_64-linux-gnu' '--build' 'x86_64-linux-gnu' '--prefix=/usr' '--sharedstatedir=/var/lib' '--libexecdir=/usr/lib' '--localstatedir=/var/lib' '--infodir=/usr/share/info' '--mandir=/usr/share/man' '--with-pop=yes' '--enable-locallisppath=/etc/emacs23:/etc/emacs:/usr/local/share/emacs/23.2/site-lisp:/usr/local/share/emacs/site-lisp:/usr/share/emacs/23.2/site-lisp:/usr/share/emacs/site-lisp:/usr/share/emacs/23.2/leim' '--with-x=yes' '--with-x-toolkit=gtk' '--with-toolkit-scroll-bars' 'build_alias=x86_64-linux-gnu' 'CFLAGS=-DDEBIAN -g -O2' 'LDFLAGS=-g' 'CPPFLAGS='' Important settings: value of $LC_ALL: nil value of $LC_COLLATE: nil value of $LC_CTYPE: nil value of $LC_MESSAGES: nil value of $LC_MONETARY: nil value of $LC_NUMERIC: nil value of $LC_TIME: nil value of $LANG: en_US.utf8 value of $XMODIFIERS: nil locale-coding-system: utf-8-unix default enable-multibyte-characters: t Major mode: Fundamental Minor modes in effect: text-scale-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 blink-cursor-mode: t auto-encryption-mode: t auto-compression-mode: t line-number-mode: t transient-mark-mode: t Recent input: C-x C-= C-= C-= C-= C-= C-x C-= C-= C-= M-x r e p o r t - e m a c s Recent messages: Loading 00debian-vars...done Loading /etc/emacs/site-start.d/50cmake-data.el (source)...done Loading /etc/emacs/site-start.d/50dictionaries-common.el (source)... Loading debian-ispell... Loading /var/cache/dictionaries-common/emacsen-ispell-default.el (source)...done Loading debian-ispell...done Loading /var/cache/dictionaries-common/emacsen-ispell-dicts.el (source)...done Loading /etc/emacs/site-start.d/50dictionaries-common.el (source)...done Loading /etc/emacs/site-start.d/50git-core.el (source)...done For information about GNU Emacs and the GNU system, type C-h C-a. Load-path shadows: /usr/share/emacs/23.2/site-lisp/cmake-data/cmake-mode hides /usr/share/emacs/site-lisp/cmake-mode /usr/share/emacs/23.2/site-lisp/debian-startup hides /usr/share/emacs/site-lisp/debian-startup /usr/share/emacs23/site-lisp/dictionaries-common/ispell hides /usr/share/emacs/23.2/lisp/textmodes/ispell /usr/share/emacs23/site-lisp/dictionaries-common/flyspell hides /usr/share/emacs/23.2/lisp/textmodes/flyspell Features: (shadow sort mail-extr message sendmail regexp-opt ecomplete rfc822 mml easymenu mml-sec password-cache mm-decode mm-bodies mm-encode mailcap mail-parse rfc2231 rfc2047 rfc2045 qp ietf-drums mailabbrev nnheader gnus-util netrc time-date mm-util mail-prsvr gmm-utils wid-edit mailheader canlock sha1 hex-util hashcash mail-utils emacsbug face-remap tooltip ediff-hook vc-hooks lisp-float-type mwheel x-win x-dnd font-setting tool-bar dnd fontset image fringe lisp-mode register page menu-bar rfn-eshadow timer select scroll-bar mldrag 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 loaddefs button minibuffer faces cus-face files text-properties overlay md5 base64 format env code-pages mule custom widget hashtable-print-readable backquote make-network-process dbusbind system-font-setting font-render-setting gtk x-toolkit x multi-tty emacs) *************** Windows 7 *************** In GNU Emacs 23.3.1 (i386-mingw-nt6.1.7601) of 2011-03-10 on 3249CTO Windowing system distributor `Microsoft Corp.', version 6.1.7601 configured using `configure --with-gcc (4.5) --no-opt --cflags -Ic:/imagesupport/include' Important settings: value of $LC_ALL: nil value of $LC_COLLATE: nil value of $LC_CTYPE: nil value of $LC_MESSAGES: nil value of $LC_MONETARY: nil value of $LC_NUMERIC: nil value of $LC_TIME: nil value of $LANG: ENU value of $XMODIFIERS: nil locale-coding-system: cp1252 default enable-multibyte-characters: t Major mode: Fundamental Minor modes in effect: 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 blink-cursor-mode: t auto-encryption-mode: t auto-compression-mode: t line-number-mode: t transient-mark-mode: t Recent input: M-x b u g r e p o r t - e m a c s - b u g Recent messages: For information about GNU Emacs and the GNU system, type C-h C-a. Load-path shadows: c://emacs-23.3/site-lisp/goto-last-change hides c://emacs-23.3/lisp/goto-last-change Features: (shadow sort mail-extr message ecomplete rfc822 mml easymenu mml-sec password-cache mm-decode mm-bodies mm-encode mailcap mail-parse rfc2231 rfc2047 rfc2045 qp ietf-drums mailabbrev nnheader gnus-util netrc time-date mm-util mail-prsvr gmm-utils wid-edit mailheader canlock sha1 hex-util hashcash mail-utils emacsbug tooltip ediff-hook vc-hooks lisp-float-type mwheel dos-w32 disp-table ls-lisp w32-win w32-vars tool-bar dnd fontset image fringe lisp-mode register page menu-bar rfn-eshadow timer select scroll-bar mldrag 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 loaddefs button minibuffer faces cus-face files text-properties overlay md5 base64 format env code-pages mule custom widget hashtable-print-readable backquote make-network-process multi-tty emacs)