OK, so far for that. I will first install gnome debugging package through synaptic now. If you see this in time, you may also give more specific instructions. Cheers, Thomas Terminal Output: thomas@thomas-laptop:~$ cd /var thomas@thomas-laptop:/var$ ls backups cache crash games lib local lock log mail opt run spool tmp thomas@thomas-laptop:/var$ cd crash thomas@thomas-laptop:/var/crash$ ls _usr_bin_compiz.real.1000.crash thomas@thomas-laptop:/var/crash$ apport-gtk --help bash: apport-gtk: command not found thomas@thomas-laptop:/var/crash$ apport --help bash: apport: command not found thomas@thomas-laptop:/var/crash$ apport-retrace -d The program 'apport-retrace' is currently not installed. You can install it by typing: sudo apt-get install apport-retrace bash: apport-retrace: command not found thomas@thomas-laptop:/var/crash$ sudo apt-get install apport-retrace Reading package lists... Done Building dependency tree Reading state information... Done The following extra packages will be installed: build-essential dpkg-dev g++ g++-4.3 libstdc++6-4.3-dev libtimedate-perl patch Suggested packages: debootstrap fakeroot fakechroot debian-keyring g++-multilib g++-4.3-multilib gcc-4.3-doc libstdc++6-4.3-dbg libstdc++6-4.3-doc diff-doc The following NEW packages will be installed apport-retrace build-essential dpkg-dev g++ g++-4.3 libstdc++6-4.3-dev libtimedate-perl patch 0 upgraded, 8 newly installed, 0 to remove and 0 not upgraded. Need to get 6298kB of archives. After this operation, 21.7MB of additional disk space will be used. Do you want to continue [Y/n]? y Get: 1 http://gb.archive.ubuntu.com intrepid/main patch 2.5.9-5 [100kB] Get: 2 http://gb.archive.ubuntu.com intrepid/main libtimedate-perl 1.1600-9 [30.1kB] Get: 3 http://gb.archive.ubuntu.com intrepid/main dpkg-dev 1.14.20ubuntu6 [612kB] Get: 4 http://gb.archive.ubuntu.com intrepid/main apport-retrace 0.116 [66.5kB] Get: 5 http://gb.archive.ubuntu.com intrepid/main libstdc++6-4.3-dev 4.3.2-1ubuntu8 [1354kB] Get: 6 http://gb.archive.ubuntu.com intrepid/main g++-4.3 4.3.2-1ubuntu8 [4127kB] Get: 7 http://gb.archive.ubuntu.com intrepid/main g++ 4:4.3.1-1ubuntu2 [1444B] Get: 8 http://gb.archive.ubuntu.com intrepid/main build-essential 11.4 [7172B] Fetched 6298kB in 3min23s (31.0kB/s) Selecting previously deselected package patch. (Reading database ... 102354 files and directories currently installed.) Unpacking patch (from .../patch_2.5.9-5_i386.deb) ... Selecting previously deselected package libtimedate-perl. Unpacking libtimedate-perl (from .../libtimedate-perl_1.1600-9_all.deb) ... Selecting previously deselected package dpkg-dev. Unpacking dpkg-dev (from .../dpkg-dev_1.14.20ubuntu6_all.deb) ... Selecting previously deselected package apport-retrace. Unpacking apport-retrace (from .../apport-retrace_0.116_all.deb) ... Selecting previously deselected package libstdc++6-4.3-dev. Unpacking libstdc++6-4.3-dev (from .../libstdc++6-4.3-dev_4.3.2-1ubuntu8_i386.deb) ... Selecting previously deselected package g++-4.3. Unpacking g++-4.3 (from .../g++-4.3_4.3.2-1ubuntu8_i386.deb) ... Selecting previously deselected package g++. Unpacking g++ (from .../g++_4%3a4.3.1-1ubuntu2_i386.deb) ... Selecting previously deselected package build-essential. Unpacking build-essential (from .../build-essential_11.4_i386.deb) ... Processing triggers for man-db ... Setting up patch (2.5.9-5) ... Setting up libtimedate-perl (1.1600-9) ... Setting up dpkg-dev (1.14.20ubuntu6) ... Setting up apport-retrace (0.116) ... Setting up g++-4.3 (4.3.2-1ubuntu8) ... Setting up libstdc++6-4.3-dev (4.3.2-1ubuntu8) ... Setting up g++ (4:4.3.1-1ubuntu2) ... Setting up build-essential (11.4) ... thomas@thomas-laptop:/var/crash$ apport-retrace -d Usage: apport-retrace [options] apport-retrace: error: no such option: -d thomas@thomas-laptop:/var/crash$ apport-retrace --help Usage: apport-retrace [options] Options: -h, --help show this help message and exit -s, --stdout Do not put the new traces into the report, but write them to stdout. -g, --gdb Start an interactive gdb session with the report's core dump (-o ignored; does not rewrite report) -o FILE, --output=FILE Write modified report to given file instead of changing the original report -c, --remove-core Remove the core dump from the report after stack trace regeneration -r CORE, --core-file=CORE Override report's CoreFile -x EXE, --executable=EXE Override report's ExecutablePath -m MAPS, --procmaps=MAPS Override report's ProcMaps -R, --rebuild-package-info Rebuild report's Package information -v, --verbose Report download/install progress when installing additional packages -u, --unpack-only Only unpack the additionally required packages, do not configure them; purge packages again after retracing --no-dpkg Do not use dpkg when using -u and do not purge packages afterwards. This should only be used for temporarily unpacked chroot tarballs where it would just be a waste of time. -p EXTRA_PACKAGES, --extra-package=EXTRA_PACKAGES Install an extra package (can be specified multiple times) --auth=AUTH_FILE Path to a file with the crash database authentication information. This is used when specifying a crash ID to upload the retraced stack traces (only if neither -g, -o, nor -s are specified) --confirm Display retraced stack traces and ask for confirmation before sending them to the crash database. --duplicate-db=PATH Path to the duplicate sqlite database (default: no duplicate checking) thomas@thomas-laptop:/var/crash$ ./_usr_bin_compiz.real.1000.crash bash: ./_usr_bin_compiz.real.1000.crash: Permission denied thomas@thomas-laptop:/var/crash$ sudo apport-retrace -d ./_usr_bin_compiz.real.1000.crash Usage: apport-retrace [options] apport-retrace: error: no such option: -d thomas@thomas-laptop:/var/crash$ sudo apport-retrace ./_usr_bin_compiz.real.1000.crash Usage: apport-retrace [options] apport-retrace: error: you either need to do a local operation (-s, -g, -o) or supply an authentication file (--auth); see --help for a short online help thomas@thomas-laptop:/var/crash$ sudo apport-retrace -g ./_usr_bin_compiz.real.1000.crash WARNING: package libice6-dbgsym not available WARNING: package libxcursor1-dbgsym not available WARNING: package libc6-dbgsym not available WARNING: package compiz-core-dbgsym not available WARNING: package libselinux1-dbgsym not available WARNING: package perl-base-dbgsym not available WARNING: package libgcc1-dbgsym not available WARNING: package dpkg-dbgsym not available WARNING: package mesa-utils-dbgsym not available WARNING: package libxcb1-dbgsym not available WARNING: package libxcomposite1-dbgsym not available WARNING: package liblocale-gettext-perl-dbgsym not available WARNING: package libxxf86vm1-dbgsym not available WARNING: package libtext-charwidth-perl-dbgsym not available WARNING: package libx11-xcb1-dbgsym not available WARNING: package libxrandr2-dbgsym not available WARNING: package libxcb-xlib0-dbgsym not available WARNING: package gcc-4.3-base-dbgsym not available WARNING: package sed-dbgsym not available WARNING: package libgpg-error0-dbgsym not available WARNING: package libxfixes3-dbgsym not available WARNING: package libpam0g-dbgsym not available WARNING: package libxdmcp6-dbgsym not available WARNING: package libgcrypt11-dbgsym not available WARNING: package libtext-iconv-perl-dbgsym not available WARNING: package libxslt1.1-dbgsym not available WARNING: package coreutils-dbgsym not available WARNING: package libxml2-dbgsym not available WARNING: package libacl1-dbgsym not available WARNING: package libattr1-dbgsym not available WARNING: package libxinerama1-dbgsym not available WARNING: package findutils-dbgsym not available WARNING: package libsm6-dbgsym not available WARNING: package libx11-6-dbgsym not available WARNING: package libstdc++6-dbgsym not available WARNING: package libxext6-dbgsym not available WARNING: package libxdamage1-dbgsym not available WARNING: package libncurses5-dbgsym not available WARNING: package lzma-dbgsym not available WARNING: package libxrender1-dbgsym not available WARNING: package ncurses-bin-dbgsym not available WARNING: package libgl1-mesa-glx-dbgsym not available WARNING: package compiz-wrapper-dbgsym not available WARNING: package zlib1g-dbgsym not available WARNING: package libxau6-dbgsym not available WARNING: package debianutils-dbgsym not available WARNING: package libstartup-notification0-dbgsym not available WARNING: package libdrm2-dbgsym not available WARNING: libglu1-mesa-dbgsym is not available WARNING: libpango1.0-0-dbgsym is not available WARNING: compiz-fusion-plugins-main-dbgsym is not available WARNING: libglib2.0-0-dbgsym is not available WARNING: libx11-6-dbgsym is not available WARNING: libxext6-dbgsym is not available WARNING: libxdmcp6-dbgsym is not available WARNING: compiz-plugins-dbgsym is not available WARNING: libc6-i686-dbgsym is not available WARNING: libxcb-render-util0-dbgsym is not available WARNING: libcompizconfig0-dbgsym is not available WARNING: zlib1g-dbgsym is not available WARNING: compiz-plugins-dbgsym is not available WARNING: compiz-fusion-plugins-main-dbgsym is not available WARNING: libc6-i686-dbgsym is not available WARNING: libxcursor1-dbgsym is not available WARNING: libpixman-1-0-dbgsym is not available WARNING: libxfixes3-dbgsym is not available WARNING: libcairo2-dbgsym is not available WARNING: libxau6-dbgsym is not available WARNING: compiz-plugins-dbgsym is not available WARNING: libgl1-mesa-glx-dbgsym is not available WARNING: libc6-dbgsym is not available WARNING: compiz-fusion-plugins-main-dbgsym is not available WARNING: libsm6-dbgsym is not available WARNING: compiz-fusion-plugins-main-dbgsym is not available WARNING: compiz-plugins-dbgsym is not available WARNING: compiz-fusion-plugins-main-dbgsym is not available WARNING: compiz-fusion-plugins-main-dbgsym is not available WARNING: libc6-i686-dbgsym is not available WARNING: libxrender1-dbgsym is not available WARNING: libselinux1-dbgsym is not available WARNING: compiz-fusion-plugins-main-dbgsym is not available WARNING: libfontconfig1-dbgsym is not available WARNING: liborbit2-dbgsym is not available WARNING: libxcb1-dbgsym is not available WARNING: libglib2.0-0-dbgsym is not available WARNING: libjpeg62-dbgsym is not available WARNING: libc6-i686-dbgsym is not available WARNING: libpango1.0-0-dbgsym is not available WARNING: libdrm2-dbgsym is not available WARNING: libcompizconfig0-dbgsym is not available WARNING: compiz-fusion-plugins-extra-dbgsym is not available WARNING: libpcre3-dbgsym is not available WARNING: libglib2.0-0-dbgsym is not available WARNING: libxxf86vm1-dbgsym is not available WARNING: libc6-i686-dbgsym is not available WARNING: compizconfig-backend-gconf-dbgsym is not available WARNING: compiz-plugins-dbgsym is not available WARNING: libstartup-notification0-dbgsym is not available WARNING: libx11-xcb1-dbgsym is not available WARNING: libpango1.0-0-dbgsym is not available WARNING: compiz-plugins-dbgsym is not available WARNING: compiz-fusion-plugins-main-dbgsym is not available WARNING: libice6-dbgsym is not available WARNING: libcroco3-dbgsym is not available WARNING: libpng12-0-dbgsym is not available WARNING: libgtk2.0-0-dbgsym is not available WARNING: libxcb-xlib0-dbgsym is not available WARNING: libgsf-1-114-dbgsym is not available WARNING: compiz-plugins-dbgsym is not available WARNING: compiz-fusion-plugins-main-dbgsym is not available WARNING: compiz-plugins-dbgsym is not available WARNING: libgconf2-4-dbgsym is not available WARNING: libc6-i686-dbgsym is not available WARNING: libglib2.0-0-dbgsym is not available WARNING: compiz-fusion-plugins-main-dbgsym is not available WARNING: librsvg2-2-dbgsym is not available WARNING: libexpat1-dbgsym is not available WARNING: libdbus-1-3-dbgsym is not available WARNING: libgcc1-dbgsym is not available WARNING: libglib2.0-0-dbgsym is not available WARNING: libstdc++6-dbgsym is not available WARNING: libxinerama1-dbgsym is not available WARNING: libxcb-render0-dbgsym is not available WARNING: libc6-i686-dbgsym is not available WARNING: libbz2-1.0-dbgsym is not available WARNING: compiz-fusion-plugins-main-dbgsym is not available WARNING: libxcomposite1-dbgsym is not available WARNING: libc6-i686-dbgsym is not available WARNING: compiz-plugins-dbgsym is not available WARNING: libfreetype6-dbgsym is not available WARNING: compiz-fusion-plugins-extra-dbgsym is not available WARNING: compiz-plugins-dbgsym is not available WARNING: compiz-fusion-plugins-main-dbgsym is not available WARNING: libxml2-dbgsym is not available WARNING: libxdamage1-dbgsym is not available WARNING: libdecoration0-dbgsym is not available WARNING: compiz-plugins-dbgsym is not available WARNING: libc6-i686-dbgsym is not available WARNING: libxrandr2-dbgsym is not available WARNING: libxslt1.1-dbgsym is not available WARNING: compiz-fusion-plugins-main-dbgsym is not available WARNING: libdbus-glib-1-2-dbgsym is not available GNU gdb 6.8-debian Copyright (C) 2008 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Type "show copying" and "show warranty" for details. This GDB was configured as "i486-linux-gnu". Reading symbols from /usr/bin/compiz.real...(no debugging symbols found)...done. Cannot access memory at address 0xb8014658 (gdb)