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.
Most hardware should work with PC-BSD, but in some cases, cheap hardware has been reported not to work. If you use mainstream or top-end hardware, such as those that feature VIA or NVIDIA chipsets, it will usually work flawlessly.
To ensure your hardware is supported, check the FreeBSD 8.1 Hardware List.