Just to add also. I've noticed if you allow guests to view Who's Online. While it shows it to them in drop-down list to access the Who's Online page listed under Members tab. They don't as guest see the Who's Online block displayed in footer area of a page. Is that right or should they be seeing it there also as well if having permission to view Who's Online and it's used on a page displayed?
Also, what is "Hauptmenu" that appears to be greyed out and not in English when everything else is in English?