Tor Browser Bundle on OS X 10.6 does not set resolution to a multiple of 200x100

Panopticlick and http://browserspy.dk/screen.php report a width of 1000 pixels and height of 571 pixels.

This behavior is observed immediately after unzipping TorBrowser into a clean directory and launching it.

Mac OS X 10.6.8, TorBrowser-2.3.25-5-osx-x86_64-en-US.zip