Thread Subject: dropdown buttons stopped working

I'm on MacOS 10.5.7 and recently my dropdown buttons stopped work
(like the Cell Mode section selector). When I click it displays the
dropdown for half a second and disappears.

The only change I see is that now when I start Matlab, there's a
following Exception

Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException
at apple.awt.CGraphicsEnvironment.resetDisplays
(CGraphicsEnvironment.java:99)
at apple.awt.CGraphicsEnvironment.displayChanged
(CGraphicsEnvironment.java:49)
at apple.awt.CToolkit$4.run(CToolkit.java:1310)
at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:209)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:461)
at java.awt.EventDispatchThread.pumpOneEventForHierarchy
(EventDispatchThread.java:269)
at java.awt.EventDispatchThread.pumpEventsForHierarchy
(EventDispatchThread.java:190)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:
184)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:
176)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:110)

I'm getting the same error message after starting Matlab (R2009a on Mac OS X 10.5.7), and getting the same drop down menu problem. Any word from TMW?

Same situation; but it started happening with 2007b. The problem persists now with 2009a. Any ideas?

Its a known bug, number 547093, see the release notes:
http://www.mathworks.com/access/helpdesk/help/techdoc/index.html
The "unofficial" patch worked for me, and it is listed as fixed in 2009b.