How do I change my avatar?
In Proteus, navigate first to Preferences in the File menu and then to the My Profile pane. If the Use my Address Book card option is unchecked, you can simply drag your desired image into the My Image well; alternatively, you can click on the well and select Choose Picture. If the Use my Address Book card option is checked, you will have to change your user picture in the Address Book, which you can launch from the My Profile pane (under the Personal tab).