Login required twice

I have my id/password for my website set-up at the root level. My problem is when users enter my site http://www.clanobrien.us the user is prompted twice for his user id and password. Please see the code invoked below when entering the site below.

If I directly enter into my address bar another part of my site I am only prompted once for my id/password. Yahoo Web Hosting Customer Support has confirmed my password settings are correct. They believe it is a WP issue.

I have cretaed a temporary id and password for my site for someone who wishes to help. The id is temp and the password is temp.

http://www.clanobrien.us/index.php looks like this
<?php
/* Short and sweet */
define(‘WP_USE_THEMES’, true);
define(‘WP_IN_ROOTDIR’, true);
require(‘./blog/wp-blog-header.php’);
?>

http://www.clanobrien.us//blog/wp-blog-header.php looks like this
<?php

if (! isset($wp_did_header)):
if ( !file_exists( dirname(__FILE__) . ‘/wp-config.php’) ) {
if ( strstr( $_SERVER[‘PHP_SELF’], ‘wp-admin’) ) $path = ”;
else $path = ‘wp-admin/’;
die(“There doesn’t seem to be a wp-config.php file. I need this before we can get started. Need more help? We got it. You can create a wp-config.php file through a web interface, but this doesn’t work for all server setups. The safest way is to manually create the file.”);
}

$wp_did_header = true;

require_once( dirname(__FILE__) . ‘/wp-config.php’);

wp();
gzip_compression();

require_once(ABSPATH . WPINC . ‘/template-loader.php’);

endif;

?>