This is the response I got regarding the issues you mentioned. Hopefully it helps.
So if I had a link called 'Tutorials' that led to the tutorials page and next to that I had a sub arrow, the arrow would open the sub menu and the text 'Tutorials' would open the tutorials page. If Tutorials was simply a separator menu item then both the text and the arrow would open the sub menu.
For the forum issue it sounds like he's got a session issue on his machine. He should logout, clear his cookies and log back in.