Same problem on my AMD64 machines after upgrading to Oneiric. FWIW, the OP noted that this appears to be a Kubuntu-specific bug, not a bug in Plasma: https://bugs.kde.org/show_bug.cgi?id=284015
** Bug watch added: KDE Bug Tracking System #284015 http://bugs.kde.org/show_bug.cgi?id=284015 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/886734 Title: [Kubuntu 11.10] LibreOffice icons are missing from taskbar To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libreoffice/+bug/886734/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs