Detailed Description of the Problem
The first thing my player (while testing this out) tried to do was to update their health so they were controlling their own hit points - working with the assumption the DM has enough to do. They were not able to do this - not sure if this is intentional or not.
Steps to Reproduce the Problem
Assign control of a token to a player, get the player to try to update the numbers on their token.
Description of Your Setup (Browser + Version, Operating System, etc.)
The player in question was using Firefox (latest version, dont know number but got him to update before test) on Windows XP (not sure SP level).