Viewing any page other than first page of visitor messages is broken.
If you go to a profile and click on visitor messages, the first page shows up. But when you click on a second page, the GET request part of the URL is missing the users username, in my case it's "username=Link", so the complete url would be "/member.php?username=Link&tab=visitor_messaging&pag e=2#visitor_messaging", currently it's just "/member.php?tab=visitor_messaging&page=2#visitor_me ssaging" but that's a broken link.