I'm not very swanky with htaccess files, but the default RewriteCond doesn't seem to be forwarding www-less URLS properly.

Example:

http://www.example.com -- Works fine.
http://example.com -- 404 error

As the .htaccess file stands now, it's written:

RewriteCond %{HTTP_HOST} !^www\.
RewriteRule ^\/?(.*)$ http://www.%{HTTP_HOST}/$1 [R=301,L]

How might I go about getting it to properly forward?

Cheers.