I run a private forum and would like to show Avatars (thread creator avatar) to members only. So literally, visitors who are looking at a thread (thread-content is already made visible to registered members only) should not be able to see the custom avatar-image of the user. There should be just the default avatar visible for guests. The real avatar-image of the user should be visible to registered members only. Is there a way to achieve this ? Appreciate your help!