Have you guys thought of using the Envolve chat system instead of the chatbox you currently have in use? IMO I find the chatbox intrusive as you cannot minimize it and it doesn't really have a good appearance to it or a convenient location on the page. On other sites I have admin'd for I have used Envolve. It allows mods to create a default public chat room, but then also allows members to have private chats or even create other public chats. It allows your mods the ability to keep record of the Public chats so that you can moderate, but keeps the private chats secure on the envolve servers. Anyway what I really like is that it is minimizable, yet is easily accessible on any page regardless of where you are scrolled to on the page. Their free account allows for 25 simultanious chatters which I have found is about right even for large sites. Anyway thought it was worth you guys checking out. It is really easy to install and remove. Here is the link: https://www.envolve.com/