Don't worry, your English is excellent. Chat is notoriously unreliable. Many people find that the window will open, but there is no cursor to indicate that you can actually send a message. There is nothing that you can do about this and, because "Chat" is not a high priority service for Limewire users, there is unlikely to be a fix soon. Sorry I cannot be of more help. If you want to talk to people, surf around and join in the chat rooms for the music you are interested in.