Number Input in Firefox

Hi,

I’ve discovered a little bug with the input of numbers in a textfield via firefox. If you’re not using the numpad (I’m using a notebook), the numbers simply won’t display in FF, unless you open the swf directly.

Example:
I’ve uploaded 2 files to demonstrate:
http://users.telenet.be/pulse/typetest/main.html
http://users.telenet.be/pulse/typetest/main_deoz.swf

If you try to enter a number in the box, it’ll work if you’re viewing the swf directly. If you’re working via the html-page however, it’ll fail. (This only aplies to FF, and a non-numpad input)

Does anyone have an explanation or a fix for this?

EDIT: Problem only occurs in XP and Vista, OS X works fine