This seams to be a duplicate bug of bug #228596, #228701. Hi together, so this happend together with an update on Mai 8th.
The problem is <<<<< WITH BACKPORTS UPDATE ENABLED >>>>> This updates libqt4* to version 4.x, whereas hardy comes with version 3.4.x. I did the following rollback and everything works like expected: 1. Disable the backports updates (unsupported) in the update manager 2. apt-get remove libqt4-dbus libqt4-test libqtcore4 libqt4-xml libqtgui4 libqt4-network libqt4-script libqt4-opengl libqt4-svg libqt4-assistant 3 apt-get clean (! removes all previously downloaded deb files from /var/cache/apt/archives) 4. apt-get install --reinstall libqt4-gui libqt4-core 5. Check, if everything went fine: apt-get -f install or dpkg --configure -a This procedure should deactualise to the previous version libqt4 3.4.x. If this does not help, download all relevant (3.4.x) libqt4* packages from a download mirror of "packages.ubuntu.com/hardy/" and install them manually with dpkg -i --force-all libqt4*.deb Check the Installation finally with apt-get -f install or dpkg --configure -a -- lyx 1.5.3.1 crashes as soon as it starts https://bugs.launchpad.net/bugs/228067 You received this bug notification because you are a member of Kubuntu Team, which is subscribed to qt4-x11 in ubuntu. -- kubuntu-bugs mailing list [EMAIL PROTECTED] https://lists.ubuntu.com/mailman/listinfo/kubuntu-bugs