Not a bug per se, but if resolution is 1024 x 768 or smaller is used, the scroll bar of the drop-down list is out of the screen so you'll have to minimize the window to see it:

http://img399.imageshack.us/img399/6...ownlistbg0.jpg

Tested with firefox 3.0.4




Maybe make the font smaller depending on the resolution (if possible)?