Shoutbox

Hi, I'm using the current version of windows live messenger. I have a problem where when I click on a contact to open the chat window, the chat window minimizes itself on the taskbar and when I try to maximize it to see it, it disappears behind the screen, it seems. It seems to do this with all versions of windows live so far. It also doesn't remember my sign-in info but I think I can fix that part. Any help would be appreciated!