Search term including an apostrophe gives 404 error?
 

For some reason if you search on our forums and include an apostrophe (i.e. Mother's Day) it gives a 404 Forbidden message.

Any clue why?

Here is the error:
Forbidden

You don't have permission to access /forums/showthread.php on this server.

Additionally, a 404 Not Found error was encountered while trying to use an ErrorDocument to handle the request.

Apache/2.2.11 (Unix) mod_ssl/2.2.11 OpenSSL/0.9.8i DAV/2 mod_auth_passthrough/2.1 mod_bwlimited/1.4 FrontPage/5.0.2.2635 Server at www.mommaville.com Port 80