When a message contains bold or italic text, the minibuffer is resized incorrectly. E.g. consider the following two commands: (defun x () (interactive) (let ((message "Hello World")) (put-text-property 0 5 'face 'bold message) (message message))) (defun y () (interactive) (let ((message "Hello World")) (put-text-property 0 5 'face '(:foreground "blue") message) (message message))) On "M-x x" the minibuffer will look as if the message contained a trailing newline. On "M-x y" the minibuffer will display correctly. eldoc's tips become distracting as this causes random flickering of the minibuffer while moving the cursor through code. The problem is reproducible at least in all emacs-24.x-bin-i386.zip releases on http://ftp.gnu.org/gnu/emacs/windows/ The problem is not reproducible in the Cygwin version GNU Emacs 24.3.1 (i686-pc-cygwin, GTK+ Version 3.4.4) of 2013-04-26 In GNU Emacs 24.3.1 (i386-mingw-nt6.1.7601) of 2013-03-17 on MARVIN Windowing system distributor `Microsoft Corp.', version 6.1.7601 Configured using: `configure --with-gcc (4.7) --cflags -ID:/devel/emacs/libs/libXpm-3.5.8/include -ID:/devel/emacs/libs/libXpm-3.5.8/src -ID:/devel/emacs/libs/libpng-dev_1.4.3-1/include -ID:/devel/emacs/libs/zlib-dev_1.2.5-2/include -ID:/devel/emacs/libs/giflib-4.1.4-1/include -ID:/devel/emacs/libs/jpeg-6b-4/include -ID:/devel/emacs/libs/tiff-3.8.2-1/include -ID:/devel/emacs/libs/gnutls-3.0.9/include -ID:/devel/emacs/libs/libiconv-1.13.1-1-dev/include -ID:/devel/emacs/libs/libxml2-2.7.8/include/libxml2' Important settings: value of $LANG: ENU locale-coding-system: cp1252 default enable-multibyte-characters: t Major mode: Lisp Interaction Minor modes in effect: eldoc-mode: t show-paren-mode: t cua-mode: t tooltip-mode: t mouse-wheel-mode: t file-name-shadow-mode: t global-font-lock-mode: t font-lock-mode: t auto-composition-mode: t auto-encryption-mode: t auto-compression-mode: t column-number-mode: t line-number-mode: t transient-mark-mode: t hs-minor-mode: t Recent input: M-x b u g r e p o r t Recent messages: Loading paren...done Loading e:/lib/emacs/emacs.el (source)... Source file `e:/lib/emacs/my-unbound-interactive-functions.el' newer than byte-compiled file Source file `e:/lib/emacs/my-global-bindings.el' newer than byte-compiled file Fill column set to 70 (was 70) Backup files ("file.txt~") will be created in 'C:\Users\klaus\AppData\Local\Temp/emacsbackupfiles-klaus' Source file `e:/lib/emacs/my--org.el' newer than byte-compiled file Zenified! Loading e:/lib/emacs/emacs.el (source)...done For information about GNU Emacs and the GNU system, type C-h C-a. 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gnuplot-autoloads kv-autoloads minimap-autoloads noflet-autoloads org-autoloads info python-autoloads web-autoloads tabbar easy-mmode my--org advice help-fns advice-preload skeleton hideshow easymenu package my-cygwin my-global-bindings two-column my-unbound-interactive-functions alt-hack my-benchmark-utils cl-macs gv cl-lib saveplace paren cua-base cus-start cus-load time-date tooltip ediff-hook vc-hooks lisp-float-type mwheel dos-w32 ls-lisp w32-common-fns disp-table w32-win w32-vars 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 w32 multi-tty emacs)