Sorry for the inconvenience. Known Navigation header breakage, its being "rebuilt" but forward nav should be ok now.
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.
Changes related to "Category:Handbook"
28 January 2015
26 January 2015
01:38(Deletion log) Tigersharke restored page PC-BSD® Users Handbook/9.2 (7 revisions restored: didn't intend to remove, only shock the system)