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 =
** Attachment added: out-3.ogv
http://launchpadlibrarian.net/26330748/out-3.ogv
** Attachment added: Dependencies.txt
http://launchpadlibrarian.net/26330749/Dependencies.txt
--
Workspace Switcher 'shakes' when switching workspaces under compiz
https://bugs.launchpad.net/bugs/371958
You