Version: (using KDE 4.3.0) Installed from: Ubuntu Packages While chatting with the facebook-plugin it happens that chat-window gui is frozen and does not show what I am tipping. It takes a while before the tipped stuff appears. I have the "feeling" it has something to do with the previous message. Meaning the gui blocks when the previous message has not been delivered yet.
Since facebook now uses jabber, this can be considered resolved.