Sorry for the inconvenience. Known Navigation header breakage, its being "rebuilt."
There may be other unforeseen breakage primarily in the handbook portion of the wiki.
The Table Of Contents section of each "PC-BSD® Users Handbook" page may be the best workaround.
Translations:PC-BSD® Live Mode/9.2/6/en
tput: no terminal type specified and no TERM environmental variable. Do you want to expand the file-system for this LIVE media? This process may take up to 15 minutes.Resize? (y/n):