I.P. address showing in chat box in Mac

Hello, this is a great plugin. I just had a question...when using the chat box on a Mac, Safari browser, the person you are chatting with shows their I.P. address each instance below their username. I don't see this on Firefox, not sure if this is happening on other browsers. I would rather it not display people's I.P. addresses. How can I remove this? I didn't see this in settings. Thanks very much!