Clicking the IM button brings up the Instant Messaging window, where you can exchange Instant text Messages with another LIVE user. Select a LIVE user in the Contacts Window before you click the IM button. You can exchange Instant Messages with any other LIVE user who... • is in your Contact List and • is currently active. (A green dot next to the name indicates that they are currently active -- in the picture, Larry and Susan are both currently active.) Click here for more information about Instant Messaging.