This happens randomly when something changes in the notification area (like when I'm receiving a message on Gajim or getting info about new mail from Evolution). I don't know the easy way to trigger the bug.
-- notification area has 3 strange lines https://bugs.launchpad.net/bugs/149500 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