Images, CSS, JS disappear on any controller, but home page

[eluser]Zelf[/eluser]
No doubt this is a newbie question....

I am developing on my localhost. I have the following .htaccess file:

RewriteEngine on
RewriteBase /fortlewis/
RewriteCond $1 !^(index\.php|images|global_assets|robots\.txt)
RewriteRule ^(.*)$ /fortlewis/index.php/$1 [L]

In config.php
$config['base_url'] = "http://localhost/mydirectory/";
$config['index_page'] = "";

When I access http://localhost/mydirectory/ all the images and css styling and javascript I have added to the view display no problems. When I go to http://localhost/mydirectory/othercontro...thermethod the images, css, etc disappear. The view displays.

In page source on pages other than the default index page view I see a relative path to images, etc just like on the home page.

What bit of information I am overlooking here that I need to configure?

Also, If I turn off the .htaccess file and change config to:
$config['base_url'] = "http://localhost/mydirectory/";
$config['index_page'] = "index.php";

I still get the same results. So obviously it is not the .htaccess file causing this and I am overlooking some other factor here.