Secure Desktop Area dialog

Hi, I am not sure I am writing to the right list, but this is the only place where I found anything about the aforementioned dialog. I am trying to create a lockdown environment using Trinity Desktop and Ubuntu 12.04LTS. It is all good and fine except that after the first login if I press CTRL+ALT+DEL the dialog appears and makes logging of, restarting the machine possible, which are some things I want to deny users. However if I log out and log in again the same key combination does nothing. I tried comparing configurations before after without success. I added new users test1, test2 and after reboot logged in using test1 then test2, skipped the wizard both times. In case of test1 the dialog appeared upon CTRL+ALT+DEL in case of test2 it did not. Even for the user with lockdown profile the same rule applies, after first login dialog appears, second and subsequent(tried 4 times) logins no dialog. Is this a bug or am I missing something? Is there a way to turn this thing off totally? Thank you Frigyes Pratser /etc/lsb-release DISTRIB_ID=Ubuntu DISTRIB_RELEASE=12.04 DISTRIB_CODENAME=precise DISTRIB_DESCRIPTION="Ubuntu 12.04 LTS" dpkg -l | grep trinity ii ark-trinity 4:3.5.13-1ubuntu0+ax2~precise graphical archiving tool for Trinity ii arts-trinity 4:3.5.13-1ubuntu0+ax2~precise sound system from the official KDE release ii gtk-qt-engine-trinity 4:3.5.13-1ubuntu0+ax2~precise theme engine using Qt for GTK+ 2.x and Trinity ii hal-trinity 0.5.14-8 Hardware Abstraction Layer [Trinity] ii kappfinder-trinity 4:3.5.13-1ubuntu0+ax3~precise non-KDE application finder for KDE ii kate-trinity 4:3.5.13-1ubuntu0+ax3~precise advanced text editor for KDE ii kcontrol-trinity 4:3.5.13-1ubuntu0+ax3~precise control center for KDE ii kcron-trinity 4:3.5.13-1ubuntu0+ax1~precise the Trinity crontab editor ii kdbusnotification-trinity 4:3.5.13-1ubuntu0+ax2~precise a DBUS notification service [Trinity] ii kde-style-qtcurve-trinity 4:3.5.13-1ubuntu0+ax1~precise This is a set of widget styles for Trinity based apps ii kde-systemsettings-trinity 4:3.5.13-1ubuntu0+ax1~precise easy to use control centre for TDE ii kdeadmin-kfile-plugins-trinity 4:3.5.13-1ubuntu0+ax1~precise Trinity file metainfo plugins for deb and rpm files ii kdebase-data-trinity 4:3.5.13-1ubuntu0+ax3~precise shared data files for the KDE base module ii kdebase-kio-plugins-trinity 4:3.5.13-1ubuntu0+ax3~precise core I/O slaves for KDE ii kdebase-runtime-data-common-trinity 4:3.5.13-1ubuntu0+ax3~precise Shared common files for Trinity and KDE4 ii kdebase-trinity 4:3.5.13-1ubuntu0+ax3~precise base components from the official KDE release ii kdebase-trinity-bin 4:3.5.13-1ubuntu0+ax3~precise core binaries for the KDE base module ii kdegraphics-kfile-plugins-trinity 4:3.5.13-1ubuntu0+ax2~precise KDE metainfo plugins for graphic files ii kdelibs-data-trinity 4:3.5.13-1ubuntu0+ax5~precise core shared data for all TDE applications ii kdelibs4c2a-trinity 4:3.5.13-1ubuntu0+ax5~precise core libraries and binaries for all TDE applications ii kdemultimedia-kfile-plugins-trinity 4:3.5.13-1ubuntu0+ax3~precise au/avi/m3u/mp3/ogg/wav plugins for kfile ii kdemultimedia-kio-plugins-trinity 4:3.5.13-1ubuntu0+ax3~precise enables the browsing of audio CDs under Konqueror ii kdenetwork-filesharing-trinity 4:3.5.13-1ubuntu0+ax2~precise network filesharing configuration module for Trinity ii kdenetwork-kfile-plugins-trinity 4:3.5.13-1ubuntu0+ax2~precise torrent metainfo plugin for Trinity ii kdepasswd-trinity 4:3.5.13-1ubuntu0+ax3~precise password changer for KDE ii kdeprint-trinity 4:3.5.13-1ubuntu0+ax3~precise print system for KDE ii kdesktop-trinity 4:3.5.13-1ubuntu0+ax3~precise miscellaneous binaries and files for the KDE desktop ii kdm-trinity 4:3.5.13-1ubuntu0+ax3~precise X display manager for KDE ii kdnssd-trinity 4:3.5.13-1ubuntu0+ax2~precise Zeroconf support for KDE ii kfind-trinity 4:3.5.13-1ubuntu0+ax3~precise file-find utility for KDE ii kghostview-trinity 4:3.5.13-1ubuntu0+ax2~precise PostScript viewer for Trinity ii kgtk-qt3-trinity 4:3.5.13-1ubuntu0+ax0~precise Use KDE dialogs in Gtk apps ii khelpcenter-trinity 4:3.5.13-1ubuntu0+ax3~precise help center for KDE ii kicker-trinity 4:3.5.13-1ubuntu0+ax3~precise desktop panel for KDE ii kio-locate-trinity 4:3.5.13-1ubuntu0+ax1~precise kio-slave for the locate command [Trinity] ii klipper-trinity 4:3.5.13-1ubuntu0+ax3~precise clipboard utility for Trinity ii kmenuedit-trinity 4:3.5.13-1ubuntu0+ax3~precise menu editor for KDE ii kmix-trinity 4:3.5.13-1ubuntu0+ax3~precise sound mixer applet for Trinity ii knetworkconf-trinity 4:3.5.13-1ubuntu0+ax1~precise Trinity network configuration tool ii konq-plugins-trinity 4:3.5.13-1ubuntu0+ax3~precise plugins for Konqueror, the Trinity file/web/doc browser ii konqueror-nsplugins-trinity 4:3.5.13-1ubuntu0+ax3~precise Netscape plugin support for Konqueror ii konqueror-trinity 4:3.5.13-1ubuntu0+ax3~precise KDE's advanced file manager, web browser and document viewer ii konsole-trinity 4:3.5.13-1ubuntu0+ax3~precise X terminal emulator for KDE ii kpager-trinity 4:3.5.13-1ubuntu0+ax3~precise desktop pager for KDE ii kpdf-trinity 4:3.5.13-1ubuntu0+ax2~precise PDF viewer for Trinity ii kpersonalizer-trinity 4:3.5.13-1ubuntu0+ax3~precise installation personalizer for KDE ii ksmserver-trinity 4:3.5.13-1ubuntu0+ax3~precise session manager for KDE ii ksnapshot-trinity 4:3.5.13-1ubuntu0+ax2~precise screenshot utility for Trinity ii ksplash-engine-moodin-trinity 4:3.5.13-1ubuntu0+ax1~precise fading splash screen engine for Trinity ii ksplash-trinity 4:3.5.13-1ubuntu0+ax3~precise the KDE splash screen ii ksvg-trinity 4:3.5.13-1ubuntu0+ax2~precise SVG viewer for Trinity ii ksysguard-trinity 4:3.5.13-1ubuntu0+ax3~precise system guard for KDE ii ksysguardd-trinity 4:3.5.13-1ubuntu0+ax3~precise system guard daemon for KDE ii ksystemlog-trinity 4:3.5.13-1ubuntu0+ax1~precise system log viewer tool for Trinity ii ktip-trinity 4:3.5.13-1ubuntu0+ax3~precise useful tips for KDE ii kubuntu-default-settings-trinity 1:10.10-9~lucid Default settings and artwork for the Debian KDE3 desktop ii kubuntu-desktop-trinity 1:78 Kubuntu desktop system, TDE version ii kwin-style-crystal-trinity 4:3.5.13-1ubuntu0+ax1~precise semi transparant window decoration for Trinity ii kwin-trinity 4:3.5.13-1ubuntu0+ax3~precise the KDE window manager ii libarts1-akode-trinity 4:3.5.13-1ubuntu0+ax3~precise akode plugin for aRts ii libarts1c2a-trinity 4:3.5.13-1ubuntu0+ax2~precise aRts sound system core components ii libartsc0-trinity 4:3.5.13-1ubuntu0+ax2~precise aRts sound system C support library ii libkcddb1-trinity 4:3.5.13-1ubuntu0+ax3~precise CDDB library for Trinity ii libkonq4-trinity 4:3.5.13-1ubuntu0+ax3~precise core libraries for Konqueror ii libsmokeqt1-trinity 4:3.5.13-1ubuntu0+ax2~precise SMOKE Binding Library to Qt ii sudo-trinity 1.9 TDE sudo