I try to load the attached file (when un-compressed). It's 512k of text, but I have a fast multi-GHz machine with GBs of spare RAM etc. and I can load 20+Mb .txt files in emacs just fine normally. Loading this generates several minutes of non-responsiveness. HTH, Michael. In GNU Emacs 22.2.1 (i586-suse-linux-gnu, GTK+ Version 2.12.9) of 2008-06-07 on nepomuk Windowing system distributor `The X.Org Foundation', version 11.0.10400090 configured using `configure '--with-gcc' '--with-pop' '--without-hesiod' '--with-kerberos' '--with-kerberos5' '--with-leim' '--with-xim' '--with-system-malloc' '--prefix=/usr' '--infodir=/usr/share/info' '--mandir=/usr/share/man' '--localstatedir=/var' '--sharedstatedir=/var/lib' '--libexecdir=/usr/lib' '--with-x' '--with-sound' '--with-xpm' '--with-jpeg' '--with-tiff' '--with-gif' '--with-png' '--with-x-toolkit=gtk' '--x-includes=/usr/include' '--x-libraries=/usr/lib:/usr/share/X11' '--build=i586-suse-linux-gnu' 'build_alias=i586-suse-linux-gnu' 'CC=gcc' 'CFLAGS=-O2 -march=i586 -mtune=i686 -fmessage-length=0 -Wall -D_FORTIFY_SOURCE=2 -fstack-protector -g -D_GNU_SOURCE -std=gnu89 -pipe -fno-strict-aliasing -Wno-pointer-sign -Wno-unused-variable -Wno-unused-label -Wno-unprototyped-calls -DSYSTEM_PURESIZE_EXTRA=55000 -DSITELOAD_PURESIZE_EXTRA=10000 ' 'LDFLAGS='' 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_GB.UTF-8 locale-coding-system: utf-8 default-enable-multibyte-characters: t Major mode: C/l Minor modes in effect: show-paren-mode: t tooltip-mode: t tool-bar-mode: t mouse-wheel-mode: t file-name-shadow-mode: t global-font-lock-mode: t font-lock-mode: t blink-cursor-mode: t unify-8859-on-encoding-mode: t utf-translate-cjk-mode: t auto-compression-mode: t column-number-mode: t line-number-mode: t transient-mark-mode: t abbrev-mode: t Recent input: C-x C-f C-a C-k / t m p h a n g . h C-x k C-x C-f q q M-x e m a c s - r e p M-b M-b C-k r e m p o r Recent messages: For information about GNU Emacs and the GNU system, type C-h C-a. Note: file is write protected Loading cc-mode... Loading advice...done Loading cc-mode...done Buffer is read-only: # Mark set Note: file is write protected Buffer is read-only: # [2 times] Loading emacsbug...done -- michael.meeks@novell.com <><, Pseudo Engineer, itinerant idiot