Thank you for your bug report, I can confirm the issue on jaunty,
apparently some users are looking into details!
** Package changed: gnome-panel (Ubuntu) => libwnck (Ubuntu)
** Changed in: libwnck (Ubuntu)
Importance: Undecided => Low
** Changed in: libwnck (Ubuntu)
Status: New => Con
** Attachment added: "out-3.ogv"
http://launchpadlibrarian.net/26330748/out-3.ogv
** Attachment added: "Dependencies.txt"
http://launchpadlibrarian.net/26330749/Dependencies.txt
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Workspace Switcher 'shakes' when switching workspaces under compiz
https://bugs.launchpad.net/bugs/371958
Yo
