Schoening Here's my solution for the leave button:
Event: Button -> on clicked AND Sprite -> Pick instance with UID Controller.MineUID
Action: Send "DC," & str(Sprite.NetworkID)
Event: System-> compare: Socket.LastDataElement(0)="DC"
Subevent: Controller -> compare: MineID != int(Socket.LastDataElement(0)
AND Sprite -> Pick instance with UID Array.At(int(Socket.LastDataElement(1)))
Action: Sprite -> Destroy
This is my solution for that, and it works for me perfectly:) But the browser closing is problem for me too.