In my root .htaccess file wordpress has put this:
# BEGIN WordPress
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
</IfModule>
# END WordPress
and in a sub directory I have a .htaccess file that says:
RewriteEngine on
RewriteRule ^bank/([^/.]+)/?$ bank/index.php?title=$1 [L]
My .htaccess file works on other servers where it is in the root! I now get a 404 error when there is anything after bank/ but i know that the code in bank/index.php is working as bank/index.php?title=ppi works fine!