When trying to access the online help system for the "switch role too..." field, I get a popup window with the error message:
Help file "switchrole.html" could not be found!
Option is to click the button to close this Window.
I was able to duplicate logged in as administrator and teacher, but I suspect it affects any role you are using. When mousing over the ? button, it says "Help, ". Other ? buttons for other fields will give a brief mention of what the help is for, like "Help, Advanced Search".