Try this command then: sudo aptitude remove $(dpkg -l |grep "4:3.97.0"|grep "^ii"|cut -d ' ' -f 3) kdebase-bin-kde3+
That should try to remove all KDE4 RC2 packages and install kdebase-bin- kde3. -- package kde-icons-oxygen 4:3.96.0-1ubuntu1 failed to install/upgrade: trying to overwrite `/usr/lib/kde4/share/icons/oxygen/22x22/actions/kscd-dock.png', which is also in package kde4multimedia-data https://bugs.launchpad.net/bugs/173365 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs