It appears to work fine... assuming you haven't voted from the machine you are currently on, you should be able to see the new button (and try it out) at http://www.duncanmackenzie.net
Currently, Halo 2 appears to be behind VS 2005... which was not what I expected :)
Let me know if you have any problems, I'm planning a larger series of updates to the control, but that won't be for a couple of days...