a screenshot in which the runaway box is seen
Go to any page in the main namespace of the Hebrew Wikisource, for example the one in the URL field. In the upper left corner there will be an icon with an eye (id="mw-fr-revisiontag"). When the user runs the mouse over it, a pop-up box opens, listing the status of the revision. It will open in the wrong direction, becoming almost impossible to actually be read.
I tested it on Windows XP, with Firefox 3.6, MSIE 8 and Chrome 10.0.614.