Htaccess issue (The page isn't redirecting properly)

[eluser]Ninjabear[/eluser]
I made this topic ages ago but I have further htaccess issues. I have looked at tutorials but I'm still no closer.

At the moment my site is at the root of my domain. I tried using the default htaccess file but with js and css added so I can keep them in the root:

Code:

RewriteEngine on
RewriteCond $1 !^(index\.php|images|robots\.txt|resources|css|js)
RewriteRule ^(.*)$ /index.php/$1 [L]

When loading the site it loads fine and all pages will load but only if I add index.php/ to the end of the domain name. No errors in log file or page.