1) Launch NB r66718 on Snow Leopard ( 10.6.4 )
2) Go to http://faculty.ed.uiuc.edu/g-cziko/jazz/autumn_mp3.mov
3) Resize the browser to the smallest size
4) Hover mouse over sound icon on the controller. Notice the volume controller appears then closes ( and cycles between opening / closing )
See attached movie.
Created attachment 66607 [details]
.zip file of compress QT movie that shows the issue with controller