getting a not found error

I have figured out that this line works:

http://localhost/sub_crud/index.php/Configure/index

I have .htaccess in my sub_crud directory. It contains:
RewriteEngine On
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^(.*)$ index.php/$1 [L]

I thought that this would work to NOT require index.php in the URI's. How can I turn off the requirement for index.php? Is my .htaccess in the wrong directory?

proof that an old dog can learn new tricks