If you receive a security message, go to the Explorer tool bar and click on "View", then "Options", "Security" and "Safety Level". Change the setting to "Medium" and try again.
Select a server. If you have problems with one server, try another.
Select the Channel you wish to join.
Enter your chat nickname.
Click on "Join the Chat". (It may take a few moments to join)
Enter your text in the lower left box of the chat frame, and then click
Send or hit Enter on the keyboard.
To send a message to just one person in the chat room, click their
name, and then click Whisper.
NOTE: Only a Channel Host can set the topic or kick a participant.
To resize a pane in the chat window, drag the frame border