I have a wordpress installation with the .htaccess:

# BEGIN WordPress
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]

# END WordPress
In a subdirectory I have placed the files for phpbb3 but it wont work because when I try to install I get 404 - http://crytekuk.info/forums

How can I fix this? I tried RewriteEngine Off but only in the phpbb3 top directory. If I have to do them for every directory then that is a pain. There must be a better way to do this.

Thank you for any help.