The height of the top bar (http://forums.pdfforge.org/c/site-feedback screen, for example) is larger than it needs to be. Therefore it obscures half of the links (in this case, Site Feedback, Latest, New, Unread, Top, New Topic and ???).
This top bar contains the pdfforge logo, the search icon, the "go to another topic" icon, and the icon representing me (user). The bar is twice the height it needs to be.
I am using Google Chrome on a Dell 13" laptop.