Hi, I previously executed as normal user, see below the output as root user: arl@arl-eeepc:~$ sudo -s [sudo] password for arl: root@arl-eeepc:~# ls -l /usr/bin/dpkg-maintscript-helper -rwxr-xr-x 1 root root 8277 2010-09-08 11:51 /usr/bin/dpkg-maintscript-helper root@arl-eeepc:~# dpkg -L dpkg /. /etc /etc/dpkg /etc/dpkg/dpkg.cfg /etc/dpkg/dpkg.cfg.d /etc/alternatives /etc/alternatives/README /etc/cron.daily /etc/cron.daily/dpkg /etc/logrotate.d /etc/logrotate.d/dpkg /usr /usr/share /usr/share/dpkg /usr/share/dpkg/archtable /usr/share/dpkg/cputable /usr/share/dpkg/ostable /usr/share/dpkg/triplettable /usr/share/locale /usr/share/locale/ast /usr/share/locale/ast/LC_MESSAGES /usr/share/locale/ast/LC_MESSAGES/dpkg.mo /usr/share/locale/bs /usr/share/locale/bs/LC_MESSAGES /usr/share/locale/bs/LC_MESSAGES/dpkg.mo /usr/share/locale/ca /usr/share/locale/ca/LC_MESSAGES /usr/share/locale/ca/LC_MESSAGES/dpkg.mo /usr/share/locale/cs /usr/share/locale/cs/LC_MESSAGES /usr/share/locale/cs/LC_MESSAGES/dpkg.mo /usr/share/locale/da /usr/share/locale/da/LC_MESSAGES /usr/share/locale/da/LC_MESSAGES/dpkg.mo /usr/share/locale/de /usr/share/locale/de/LC_MESSAGES /usr/share/locale/de/LC_MESSAGES/dpkg.mo /usr/share/locale/dz /usr/share/locale/dz/LC_MESSAGES /usr/share/locale/dz/LC_MESSAGES/dpkg.mo /usr/share/locale/el /usr/share/locale/el/LC_MESSAGES /usr/share/locale/el/LC_MESSAGES/dpkg.mo /usr/share/locale/eo /usr/share/locale/eo/LC_MESSAGES /usr/share/locale/eo/LC_MESSAGES/dpkg.mo /usr/share/locale/es /usr/share/locale/es/LC_MESSAGES /usr/share/locale/es/LC_MESSAGES/dpkg.mo /usr/share/locale/et /usr/share/locale/et/LC_MESSAGES /usr/share/locale/et/LC_MESSAGES/dpkg.mo /usr/share/locale/eu /usr/share/locale/eu/LC_MESSAGES /usr/share/locale/eu/LC_MESSAGES/dpkg.mo /usr/share/locale/fr /usr/share/locale/fr/LC_MESSAGES /usr/share/locale/fr/LC_MESSAGES/dpkg.mo /usr/share/locale/gl /usr/share/locale/gl/LC_MESSAGES /usr/share/locale/gl/LC_MESSAGES/dpkg.mo /usr/share/locale/hu /usr/share/locale/hu/LC_MESSAGES /usr/share/locale/hu/LC_MESSAGES/dpkg.mo /usr/share/locale/id /usr/share/locale/id/LC_MESSAGES /usr/share/locale/id/LC_MESSAGES/dpkg.mo /usr/share/locale/it /usr/share/locale/it/LC_MESSAGES /usr/share/locale/it/LC_MESSAGES/dpkg.mo /usr/share/locale/ja /usr/share/locale/ja/LC_MESSAGES /usr/share/locale/ja/LC_MESSAGES/dpkg.mo /usr/share/locale/km /usr/share/locale/km/LC_MESSAGES /usr/share/locale/km/LC_MESSAGES/dpkg.mo /usr/share/locale/ko /usr/share/locale/ko/LC_MESSAGES /usr/share/locale/ko/LC_MESSAGES/dpkg.mo /usr/share/locale/ku /usr/share/locale/ku/LC_MESSAGES /usr/share/locale/ku/LC_MESSAGES/dpkg.mo /usr/share/locale/lt /usr/share/locale/lt/LC_MESSAGES /usr/share/locale/lt/LC_MESSAGES/dpkg.mo /usr/share/locale/mr /usr/share/locale/mr/LC_MESSAGES /usr/share/locale/mr/LC_MESSAGES/dpkg.mo /usr/share/locale/nb /usr/share/locale/nb/LC_MESSAGES /usr/share/locale/nb/LC_MESSAGES/dpkg.mo /usr/share/locale/ne /usr/share/locale/ne/LC_MESSAGES /usr/share/locale/ne/LC_MESSAGES/dpkg.mo /usr/share/locale/nl /usr/share/locale/nl/LC_MESSAGES /usr/share/locale/nl/LC_MESSAGES/dpkg.mo /usr/share/locale/nn /usr/share/locale/nn/LC_MESSAGES /usr/share/locale/nn/LC_MESSAGES/dpkg.mo /usr/share/locale/pa /usr/share/locale/pa/LC_MESSAGES /usr/share/locale/pa/LC_MESSAGES/dpkg.mo /usr/share/locale/pl /usr/share/locale/pl/LC_MESSAGES /usr/share/locale/pl/LC_MESSAGES/dpkg.mo /usr/share/locale/pt /usr/share/locale/pt/LC_MESSAGES /usr/share/locale/pt/LC_MESSAGES/dpkg.mo /usr/share/locale/pt_BR /usr/share/locale/pt_BR/LC_MESSAGES /usr/share/locale/pt_BR/LC_MESSAGES/dpkg.mo /usr/share/locale/ro /usr/share/locale/ro/LC_MESSAGES /usr/share/locale/ro/LC_MESSAGES/dpkg.mo /usr/share/locale/ru /usr/share/locale/ru/LC_MESSAGES /usr/share/locale/ru/LC_MESSAGES/dpkg.mo /usr/share/locale/sk /usr/share/locale/sk/LC_MESSAGES /usr/share/locale/sk/LC_MESSAGES/dpkg.mo /usr/share/locale/sv /usr/share/locale/sv/LC_MESSAGES /usr/share/locale/sv/LC_MESSAGES/dpkg.mo /usr/share/locale/th /usr/share/locale/th/LC_MESSAGES /usr/share/locale/th/LC_MESSAGES/dpkg.mo /usr/share/locale/tl /usr/share/locale/tl/LC_MESSAGES /usr/share/locale/tl/LC_MESSAGES/dpkg.mo /usr/share/locale/vi /usr/share/locale/vi/LC_MESSAGES /usr/share/locale/vi/LC_MESSAGES/dpkg.mo /usr/share/locale/zh_CN /usr/share/locale/zh_CN/LC_MESSAGES /usr/share/locale/zh_CN/LC_MESSAGES/dpkg.mo /usr/share/locale/zh_TW /usr/share/locale/zh_TW/LC_MESSAGES /usr/share/locale/zh_TW/LC_MESSAGES/dpkg.mo /usr/share/man /usr/share/man/de /usr/share/man/de/man1 /usr/share/man/de/man1/dpkg-query.1.gz /usr/share/man/de/man1/dpkg-split.1.gz /usr/share/man/de/man1/dpkg-trigger.1.gz /usr/share/man/de/man1/dpkg.1.gz /usr/share/man/de/man1/dpkg-deb.1.gz /usr/share/man/de/man1/dpkg-maintscript-helper.1.gz /usr/share/man/de/man8 /usr/share/man/de/man8/start-stop-daemon.8.gz /usr/share/man/de/man8/update-alternatives.8.gz /usr/share/man/de/man8/dpkg-divert.8.gz /usr/share/man/de/man8/dpkg-statoverride.8.gz /usr/share/man/de/man5 /usr/share/man/de/man5/dpkg.cfg.5.gz /usr/share/man/es /usr/share/man/es/man1 /usr/share/man/es/man1/dpkg-query.1.gz /usr/share/man/es/man1/dpkg-split.1.gz /usr/share/man/es/man1/dpkg-trigger.1.gz /usr/share/man/es/man1/dpkg.1.gz /usr/share/man/es/man1/dpkg-deb.1.gz /usr/share/man/es/man1/dpkg-maintscript-helper.1.gz /usr/share/man/es/man8 /usr/share/man/es/man8/start-stop-daemon.8.gz /usr/share/man/es/man8/update-alternatives.8.gz /usr/share/man/es/man8/dpkg-divert.8.gz /usr/share/man/es/man8/dpkg-statoverride.8.gz /usr/share/man/es/man5 /usr/share/man/es/man5/dpkg.cfg.5.gz /usr/share/man/fr /usr/share/man/fr/man1 /usr/share/man/fr/man1/dpkg-split.1.gz /usr/share/man/fr/man1/dpkg-trigger.1.gz /usr/share/man/fr/man1/dpkg.1.gz /usr/share/man/fr/man1/dpkg-deb.1.gz /usr/share/man/fr/man1/dpkg-query.1.gz /usr/share/man/fr/man8 /usr/share/man/fr/man8/start-stop-daemon.8.gz /usr/share/man/fr/man8/update-alternatives.8.gz /usr/share/man/fr/man8/dpkg-divert.8.gz /usr/share/man/fr/man8/dpkg-statoverride.8.gz /usr/share/man/fr/man5 /usr/share/man/fr/man5/dpkg.cfg.5.gz /usr/share/man/pl /usr/share/man/pl/man1 /usr/share/man/pl/man1/dpkg-split.1.gz /usr/share/man/pl/man1/dpkg-trigger.1.gz /usr/share/man/pl/man1/dpkg.1.gz /usr/share/man/pl/man1/dpkg-deb.1.gz /usr/share/man/pl/man1/dpkg-query.1.gz /usr/share/man/pl/man8 /usr/share/man/pl/man8/start-stop-daemon.8.gz /usr/share/man/pl/man8/update-alternatives.8.gz /usr/share/man/pl/man8/dpkg-divert.8.gz /usr/share/man/pl/man8/dpkg-statoverride.8.gz /usr/share/man/pl/man5 /usr/share/man/pl/man5/dpkg.cfg.5.gz /usr/share/man/sv /usr/share/man/sv/man1 /usr/share/man/sv/man1/dpkg-query.1.gz /usr/share/man/sv/man1/dpkg-split.1.gz /usr/share/man/sv/man1/dpkg-trigger.1.gz /usr/share/man/sv/man1/dpkg.1.gz /usr/share/man/sv/man1/dpkg-deb.1.gz /usr/share/man/sv/man1/dpkg-maintscript-helper.1.gz /usr/share/man/sv/man8 /usr/share/man/sv/man8/start-stop-daemon.8.gz /usr/share/man/sv/man8/update-alternatives.8.gz /usr/share/man/sv/man8/dpkg-divert.8.gz /usr/share/man/sv/man8/dpkg-statoverride.8.gz /usr/share/man/sv/man5 /usr/share/man/sv/man5/dpkg.cfg.5.gz /usr/share/man/man1 /usr/share/man/man1/dpkg-query.1.gz /usr/share/man/man1/dpkg-split.1.gz /usr/share/man/man1/dpkg-trigger.1.gz /usr/share/man/man1/dpkg.1.gz /usr/share/man/man1/dpkg-deb.1.gz /usr/share/man/man1/dpkg-maintscript-helper.1.gz /usr/share/man/man8 /usr/share/man/man8/start-stop-daemon.8.gz /usr/share/man/man8/update-alternatives.8.gz /usr/share/man/man8/dpkg-divert.8.gz /usr/share/man/man8/dpkg-statoverride.8.gz /usr/share/man/hu /usr/share/man/hu/man5 /usr/share/man/hu/man5/dpkg.cfg.5.gz /usr/share/man/man5 /usr/share/man/man5/dpkg.cfg.5.gz /usr/share/doc /usr/share/doc/dpkg /usr/share/doc/dpkg/changelog.gz /usr/share/doc/dpkg/THANKS.gz /usr/share/doc/dpkg/AUTHORS /usr/share/doc/dpkg/README.feature-removal-schedule /usr/share/doc/dpkg/copyright /usr/share/doc/dpkg/changelog.Debian.gz /usr/share/doc/dpkg/usertags.gz /usr/share/lintian /usr/share/lintian/overrides /usr/share/lintian/overrides/dpkg /usr/bin /usr/bin/dpkg /usr/bin/dpkg-deb /usr/bin/dpkg-divert /usr/bin/dpkg-maintscript-helper /usr/bin/dpkg-query /usr/bin/dpkg-split /usr/bin/dpkg-statoverride /usr/bin/dpkg-trigger /usr/bin/update-alternatives /usr/sbin /usr/sbin/install-info /var /var/lib /var/lib/dpkg /var/lib/dpkg/alternatives /var/lib/dpkg/info /var/lib/dpkg/parts /var/lib/dpkg/updates /sbin /sbin/start-stop-daemon /usr/sbin/update-alternatives /usr/sbin/dpkg-statoverride /usr/sbin/dpkg-divert root@arl-eeepc:~# And the output of the other command you requested: root@arl-eeepc:~# LANG=C dpkg-reconfigure ubuntu-netbook-default-settings dpkg-maintscript-helper: error: couldn't identify the package root@arl-eeepc:~#