the line you have is usually in a <Directory> container.
probably looks somewthing like
<Directory /var/www/html>
Options Includes Indexes FollowSymLinks
</Directory>
My point here is make sure that you're editing the directory you are working in, or a parent of it (options cascade) and not a directory in a different partition. In other words, if your website is in /usr/local/website and you're editing the Directory container for /var/www/website, it ain't gonna help
Check on that.
