Currently the Timeless and Vector header CSS selectors are, respectively, font-family:'Linux Libertine','Times New Roman',serif and font-family:'Linux Libertine','Georgia','Times',serif. Unfortunately, the font downloads on SourceForge only include "Linux Libertine O" and not "Linux Libertine", so for the few of us who have actually bothered to install the font, it still doesn't display. Easy fix is to replace 'Linux Libertine' in both stylesheets with 'Linux Libertine','Linux Libertine O'.