i just went to the link posted in the announcement and downloaded the "System Tray and Viewer" latest version for XP.
I'm on a Dell Optiplex 755 running XP Pro SP 3.
It got worse, I'd click on the tray icon and it would pop up with the "UserName/Team Number/Password" box. I'd click on the box, it would hesitate and then blink away, then pop up again in a few seconds.
It seems like it's just a really cheap app. It acts like a noob programmed it.