Well the only message that i've got from the command line is the already in a subject of this bug report. Unfortunately i can't trigger it any more, because my installation was modified since then. I've performed many upgrades(even non official). Here is my current KDE package list: ii adept 2.1.2ubuntu26.1 package management suite for KDE ii adept-common 2.1.2ubuntu26.1 package manager for KDE -- common files ii adept-manager 2.1.2ubuntu26.1 package manager for KDE ii adept-updater 2.1.2ubuntu26.1 system update tool for KDE ii akregator 3.5.7-0ubuntu1~feisty1 RSS feed aggregator for KDE ii ark 3.5.6-0ubuntu2 graphical archiving tool for KDE ii arts 1.5.7-0ubuntu1~feisty1 sound system from the official KDE release ii atlantik 3.5.7-0ubuntu1~feisty1 KDE client for Monopoly-like network games ii blinken 3.5.7-0ubuntu1~feisty1 KDE version of the Simon Says electronic mem ii celestia 1.3.2-4ubuntu1 A real-time visual space simulation (KDE fro ii digikam 0.9.1-1ubuntu4 digital photo management application for KDE ii gwenview 1.4.1-1ubuntu1 image viewer for KDE ii hwdb-client-kde 0.6.10.1 KDE client program for the Ubuntu Hardware D ii k3b 1.0-0ubuntu2 A sophisticated KDE CD burning application ii kaddressbook 3.5.7-0ubuntu1~feisty1 KDE NG addressbook application ii kaffeine 0.8.3-0ubuntu7 versatile media player for KDE 3 ii kalzium 3.5.7-0ubuntu1~feisty1 chemistry teaching tool for KDE ii kanagram 3.5.7-0ubuntu1~feisty1 letter order game for KDE ii karm 3.5.7-0ubuntu1~feisty1 KDE time tracker tool ii kasteroids 3.5.7-0ubuntu1~feisty1 Asteroids for KDE ii katapult 0.3.1.4-0ubuntu5 item launcher for KDE ii kate 3.5.7-0ubuntu1~feisty1 advanced text editor for KDE ii kate-plugins 3.5.7-0ubuntu1~feisty1 plugins for Kate, the KDE Advanced Text Edit ii katomic 3.5.7-0ubuntu1~feisty1 Atomic Entertainment game for KDE ii kbackgammon 3.5.7-0ubuntu1~feisty1 A Backgammon game for KDE ii kbattleship 3.5.7-0ubuntu1~feisty1 Battleship game for KDE ii kblackbox 3.5.7-0ubuntu1~feisty1 A simple logical game for the KDE project ii kbruch 3.5.7-0ubuntu1~feisty1 fraction calculation teaching tool for KDE ii kbstate 3.5.7-0ubuntu1~feisty1 a keyboard status applet for KDE ii kcalc 3.5.6-0ubuntu2 calculator for KDE ii kchmviewer 2.7-1ubuntu1 CHM viewer for KDE ii kcontrol 3.5.7-0ubuntu1~feisty1 control center for KDE ii kcron 3.5.7-0ubuntu1~feisty1 the KDE crontab editor ii kde-guidance 0.8.0-0ubuntu5 collection of KDE system administration tool ii kde-icons-mono 3.5.7-0ubuntu1~feisty1 a monochromatic icons theme for KDE ii kde-systemsettings 0.0svn20070312-0ubuntu1 easy to use control centre for KDE ii kdeaddons-kfile-plugins 3.5.7-0ubuntu1~feisty1 KDE file dialog plugins for text files and f ii kdeadmin-kfile-plugins 3.5.7-0ubuntu1~feisty1 KDE file metainfo plugins for deb and rpm fi ii kdebase-bin 3.5.7-0ubuntu1~feisty1 core binaries for the KDE base module ii kdebase-data 3.5.7-0ubuntu1~feisty1 shared data files for the KDE base module pi kdebase-kio-plugins 3.5.7-0ubuntu1~feisty1 core I/O slaves for KDE ii kdebluetooth 0.99+1.0beta2-1ubuntu5 KDE Bluetooth Framework ii kdeedu 3.5.7-0ubuntu1~feisty1 educational apps from the official KDE relea ii kdeedu-data 3.5.7-0ubuntu1~feisty1 shared data for KDE educational applications ii kdegames 3.5.7-0ubuntu1~feisty1 games from the official KDE release ii kdegames-card-data 3.5.7-0ubuntu1~feisty1 Card decks for KDE games ii kdegraphics-kfile-plugins 3.5.7-0ubuntu1~feisty1 KDE metainfo plugins for graphic files ii kdelibs-data 3.5.7-0ubuntu1~feisty2 core shared data for all KDE applications ii kdelibs4c2a 3.5.7-0ubuntu1~feisty2 core libraries and binaries for all KDE appl ii kdenetwork-kfile-plugins 3.5.7-0ubuntu1~feisty1 torrent metainfo plugin for KDE ii kdepasswd 3.5.7-0ubuntu1~feisty1 password changer for KDE ii kdepim-kio-plugins 3.5.7-0ubuntu1~feisty1 KDE pim I/O Slaves ii kdepim-kresources 3.5.7-0ubuntu1~feisty1 KDE pim resource plugins ii kdepim-wizards 3.5.7-0ubuntu1~feisty1 KDE server configuration wizards ii kdeprint 3.5.7-0ubuntu1~feisty1 print system for KDE ii kdesktop 3.5.7-0ubuntu1~feisty1 miscellaneous binaries and files for the KDE ii kdict 3.5.7-0ubuntu1~feisty1 dictionary client for KDE ii kdm 3.5.7-0ubuntu1~feisty1 X display manager for KDE ii kdnssd 3.5.7-0ubuntu1~feisty1 Zeroconf support for KDE ii keduca 3.5.7-0ubuntu1~feisty1 interactive form-based tests for KDE ii keep 0.4.0-0ubuntu2 backup system for KDE ii kenolaba 3.5.7-0ubuntu1~feisty1 Enolaba board game for KDE ii kexi 1.6.2-0ubuntu1.1 integrated database environment for the KDE ii kfind 3.5.7-0ubuntu1~feisty1 file-find utility for KDE ii kfouleggs 3.5.7-0ubuntu1~feisty1 A KDE clone of the Japanese PuyoPuyo game ii kghostview 3.5.7-0ubuntu1~feisty1 PostScript viewer for KDE ii kgoldrunner 3.5.7-0ubuntu1~feisty1 A KDE clone of the Loderunner arcade game ii kgpg 3.5.6-0ubuntu2 GnuPG frontend for KDE ii khangman 3.5.7-0ubuntu1~feisty1 the classical hangman game for KDE ii khelpcenter 3.5.7-0ubuntu1~feisty1 help center for KDE ii kicker 3.5.7-0ubuntu1~feisty1 desktop panel for KDE ii kicker-applets 3.5.7-0ubuntu1~feisty1 applets for Kicker, the KDE panel ii kig 3.5.7-0ubuntu1~feisty1 interactive geometry program for KDE ii kiten 3.5.7-0ubuntu1~feisty1 Japanese reference/study tool for KDE ii kivio 1.6.2-0ubuntu1.1 a flowcharting program for the KDE Office Su ii kkbswitch 1.4.3-3 keyboard layout indicator for KDE ii kleopatra 3.5.7-0ubuntu1~feisty1 KDE Certificate Manager ii klettres 3.5.7-0ubuntu1~feisty1 foreign alphabet tutor for KDE ii klickety 3.5.7-0ubuntu1~feisty1 A Clickomania-like game for KDE ii klines 3.5.7-0ubuntu1~feisty1 Color lines for KDE ii klipper 3.5.7-0ubuntu1~feisty1 clipboard utility for KDE ii kmag 3.5.7-0ubuntu1~feisty1 a screen magnifier for KDE ii kmahjongg 3.5.7-0ubuntu1~feisty1 the classic mahjongg game for KDE project ii kmail 3.5.7-0ubuntu1~feisty1 KDE Email client ii kmailcvt 3.5.7-0ubuntu1~feisty1 KDE KMail mail folder converter ii kmenuedit 3.5.7-0ubuntu1~feisty1 menu editor for KDE ii kmilo 3.5.6-0ubuntu2 laptop special keys support for KDE ii kmines 3.5.7-0ubuntu1~feisty1 Minesweeper for KDE ii kmix 3.5.7-0ubuntu1~feisty1 sound mixer applet for KDE ii kmousetool 3.5.7-0ubuntu1~feisty1 KDE mouse manipulation tool for the disabled ii kmplot 3.5.7-0ubuntu1~feisty1 mathematical function plotter for KDE ii kmymoney2 0.8.5-1build1 personal finance manager for KDE ii knetworkconf 3.5.7-0ubuntu1~feisty1 KDE network configuration tool ii knetworkmanager 0.1-0ubuntu12 User friendly KDE frontend for NetworkManage ii knotes 3.5.7-0ubuntu1~feisty1 KDE sticky notes ii koffice-data 1.6.2-0ubuntu1.1 common shared data for the KDE Office Suite ii koffice-libs 1.6.2-0ubuntu1.1 common libraries and binaries for the KDE Of ii kolf 3.5.7-0ubuntu1~feisty1 Minigolf game for KDE ii konq-plugins 3.5.7-0ubuntu1~feisty1 plugins for Konqueror, the KDE file/web/doc ii konqueror 3.5.7-0ubuntu1~feisty1 KDE's advanced file manager, web browser and ii konquest 3.5.7-0ubuntu1~feisty1 KDE based GNU-Lactic Konquest game ii konsole 3.5.7-0ubuntu1~feisty1 X terminal emulator for KDE ii kontact 3.5.7-0ubuntu1~feisty1 KDE pim application ii kooka 3.5.7-0ubuntu1~feisty1 scanner program for KDE ii kopete 3.5.7-0ubuntu1~feisty1 instant messenger for KDE ii korganizer 3.5.7-0ubuntu1~feisty1 KDE personal organizer ii kpat 3.5.7-0ubuntu1~feisty1 KDE solitaire patience game ii kpdf 3.5.7-0ubuntu1~feisty1 PDF viewer for KDE ii kpercentage 3.5.7-0ubuntu1~feisty1 percentage calculation teaching tool for KDE ii kpf 3.5.7-0ubuntu1~feisty1 public fileserver for KDE ii kpoker 3.5.7-0ubuntu1~feisty1 KDE based Poker clone ii kppp 3.5.7-0ubuntu1~feisty1 modem dialer and ppp frontend for KDE ii krdc 3.5.7-0ubuntu1~feisty1 Remote Desktop Connection for KDE ii kreversi 3.5.7-0ubuntu1~feisty1 Reversi for KDE ii krfb 3.5.7-0ubuntu1~feisty1 Desktop Sharing for KDE ii ksame 3.5.7-0ubuntu1~feisty1 SameGame for KDE ii kscreensaver 3.5.7-0ubuntu1~feisty1 additional screen savers released with KDE ii ksensors 0.7.3-13ubuntu1 lm-sensors frontend for KDE ii kshisen 3.5.7-0ubuntu1~feisty1 Shisen-Sho for KDE ii ksirtet 3.5.7-0ubuntu1~feisty1 Tetris and Puyo-Puyo games for KDE ii ksmiletris 3.5.7-0ubuntu1~feisty1 Tetris like game for KDE ii ksmserver 3.5.7-0ubuntu1~feisty1 session manager for KDE ii ksnake 3.5.7-0ubuntu1~feisty1 Snake Race for KDE ii ksnapshot 3.5.7-0ubuntu1~feisty1 screenshot utility for KDE ii ksokoban 3.5.7-0ubuntu1~feisty1 Sokoban game for KDE ii kspaceduel 3.5.7-0ubuntu1~feisty1 Arcade two-player space game for KDE ii ksplash 3.5.7-0ubuntu1~feisty1 the KDE splash screen ii ksplash-engine-moodin 0.4.2-1ubuntu4 fading splash screen engine for KDE ii kstars 3.5.7-0ubuntu1~feisty1 desktop planetarium for KDE ii ksvg 3.5.7-0ubuntu1~feisty1 SVG viewer for KDE ii ksysguard 3.5.7-0ubuntu1~feisty1 system guard for KDE ii ksysguardd 3.5.7-0ubuntu1~feisty1 system guard daemon for KDE ii ktorrent 2.1-0ubuntu2.2 BitTorrent client for KDE ii ktouch 3.5.7-0ubuntu1~feisty1 touch typing tutor for KDE ii ktuberling 3.5.7-0ubuntu1~feisty1 Potato Guy for KDE ii kverbos 3.5.7-0ubuntu1~feisty1 Spanish verb form study application for KDE ii kvoctrain 3.5.7-0ubuntu1~feisty1 vocabulary trainer for KDE ii kwalletmanager 3.5.6-0ubuntu2 wallet manager for KDE ii kwin 3.5.7-0ubuntu1~feisty1 the KDE window manager ii kwin-style-crystal 1.0.2-1ubuntu1 semi transparant window decoration for KDE ii kwin4 3.5.7-0ubuntu1~feisty1 Connect Four clone for KDE ii kworldclock 3.5.7-0ubuntu1~feisty1 earth watcher for KDE ii language-pack-kde-en 7.04+20070601 KDE translation updates for language English ii language-pack-kde-en-base 7.04+20070412 KDE translations for language English ii language-pack-kde-ru 7.04+20070601 KDE translation updates for language Russian ii language-pack-kde-ru-base 7.04+20070412 KDE translations for language Russian ii libk3b2 1.0-0ubuntu2 The KDE cd burning application library - run ii libk3b2-mp3 1.0-0ubuntu2 The KDE cd burning application library - MP3 ii libkbanking1 2.2.3-3 KDE frontend library for AqBanking ii libkcal2b 3.5.7-0ubuntu1~feisty1 KDE calendaring library ii libkcddb1 3.5.7-0ubuntu1~feisty1 CDDB library for KDE ii libkdeedu3 3.5.7-0ubuntu1~feisty1 library for use with KDE educational apps ii libkdegames1 3.5.7-0ubuntu1~feisty1 KDE games library and common files ii libkdepim1a 3.5.7-0ubuntu1~feisty1 KDE PIM library ii libkleopatra1 3.5.7-0ubuntu1~feisty1 KDE GnuPG interface libraries ii libkmime2 3.5.7-0ubuntu1~feisty1 KDE MIME interface library ii libkpimexchange1 3.5.7-0ubuntu1~feisty1 KDE PIM Exchange library ii libkpimidentities1 3.5.7-0ubuntu1~feisty1 KDE PIM user identity information library ii libkscan1 3.5.7-0ubuntu1~feisty1 scanner library for KDE ii libksieve0 3.5.7-0ubuntu1~feisty1 KDE mail/news message filtering library ii libmimelib1c2a 3.5.7-0ubuntu1~feisty1 KDE mime library ii libpythonize0 0.4.0-3ubuntu1 Python packages to support KDE applications ii lskat 3.5.7-0ubuntu1~feisty1 Lieutnant Skat card game for KDE ii networkstatus 3.5.7-0ubuntu1~feisty1 KDE network status monitor ii openoffice.org-kde 2.2.0-1ubuntu4 KDE Integration for OpenOffice.org (Widgets, ii pykdeextensions 0.4.0-3ubuntu1 Python packages to support KDE applications ii python-kde3 3.16.0-0ubuntu11 KDE3 bindings for Python ii skim 1.4.5-1ubuntu1 smart common input method platform for KDE I am pretty sure you can get this bug on plain new Kubuntu 7.04 installation. It was in konqueror by default.