[Centrix]

Still, not everybody knows this but I guess you all met the annoying chatbox that doesnt go away after you press ENTER once, (you have to press it TWICE) so when you get attacked all of a sudden or something you die because the chatbox was in the way....

Press ESC a few times until you see the main menu,

General settings > uncheck the box saying "Command Prompt".

Press apply, and try to chat.

There you go, a normal chatbox!