Comment 160 for bug 67226

Actually, none of the above worked for me, but I did find a solution at:
http://ubuntuforums.org/showthread.php?p=8195398

Specifically:
sudo rm /etc/fonts/conf.d/10-hinting-slight.conf
sudo ln -s /etc/fonts/conf.avail/10-hinting-full.conf /etc/fonts/conf.d/