Shoutbox

You have to go, in the main Messenger window, on "File" -> "Sign in..." -> then enter your e-mail adress and password and leave the "Remember my Name and Password on this computer" box unchecked. Then click on OK. The next time you want to sign in, the window will come up again and ask for your password, just make sure you don't check the "Remember my...." box.

(just for Win98)