On Thu, May 7, 2009 at 07:59, Dr. Avery Jenkins
I just filed this bug for you:
http://bugzilla.gnome.org/show_bug.cgi?id=582485. I've seen similar behavior but had not had the time to track it down.
You can CC yourself on that bug report to be notified of any updates or if the developers need any more information from you.
In the meantime, can you disable all other extensions in Edit | Preferences to see if something else is conflicting?
Let me know how I can help! :)