Is anyone else having issues with resizing 3.1 beta 1's visual editor in Firefox 4 beta 8? I can drag the bottom portion of the UI down, but the content area doesn't expand. If I reload the page, the content will fill the newly saved height of the editor, but if I change it again (increase or decrease) the issue repeats.
I saw this TinyMCE related bug here, that was apparently fixed in beta 8, so I'm not sure this is related or if it's a WordPress thing. It seems to work fine in other browsers though...