Again back to the config file.
There are two settings
DO_CENSOR
REPLACE_WORD

See if they exist in the file.

Somewhere Gizmo posted a generic config file for reference here.

PS,
Gizmos links seem to be broken.
I started adding a default config file to the wiki.
http://www.ubbwiki.com/article/view/1/database-error-only-visible-to-forum-administrators.html

Blue Man Group
There is no such thing as stupid questions. Just stupid answers