This problem can be solved with by adding 1 line of code to window- list.c within the gnome-panel source.
First ensure you have the latest versions of gnome-panel and libwnck22. dpkg -l gnome-panel libwnck22 ii gnome-panel 1:2.30.2-1ubuntu3 launcher and docking facility for GNOME ii libwnck22 1:2.30.5-0ubuntu1 Window Navigator Construction Kit - runtime files Then get the source and build dependencies apt-get source gnome-panel apt-get build-dep gnome-panel Edit applets/wncklet/window-list.c in your favourite editor and add this line of code to the beginning of function tasklist_update, just before the if statement. wnck_tasklist_set_orientation(tasklist->tasklist, tasklist->orientation); Build the package with dpkg-buildpackage, and install the .deb file for gnome-panel. Alternatively, use the attached patch file instead of manually editing the source code. Restart the task list applet using; killall wnck-applet I hope this helps. -- Craig Shelley ** Patch added: "Fix Task List Orientation Vertical Flicker" https://bugs.launchpad.net/ubuntu/+source/gnome-panel/+bug/43066/+attachment/1790741/+files/tasklist-orientation-fix.patch -- You received this bug notification because you are a member of Ubuntu Bugs, which is a direct subscriber. https://bugs.launchpad.net/bugs/43066 Title: Window list behaves bad when panel is vertical. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs