I've got the same problem.

I went to cPanel and found that one part of the database was throwing up an error, so I changed the database type and checked/repaired it.

No dice.

So I moved all the forum files into a new directory.

Still no luck.

Finally, I've tried deleting the .htaccess file.

STILL doesn't work.

Any ideas?



EDIT: The URLs are http://www.teamsnafu.org/forums/ (old) and http://www.teamsnafu.org/forum/ (new).