I am having a problem. I have a wireless Intellimouse Explorer and multiple active users (i'm running 10.3.3). What happens is whenever one user opens the Microsoft Mouse pref pane, if the helper is not running for that user, then it launches another process. Since the process for the other user still works for my user, this causes actions such as the back and forward buttons to activate once for every helper process running. So instead of just going back, it goes back back. Is anyone else having this problem, if so have you found a workaround? Thanks.