Since it appears as though you are using "www" in some links and not others AND the fact the site is all cookie based may I suggest forcing the www in all your URL's because going from
http://theplatoon to
http://www.platoon.com (and back/forth) will cause a user to be logged in one page and logged out in another. It is also better to force the www for search engine optimization and to have conformity through the site.
If you are not aware, this is done by placing the following in your .htaccess file in your root web directory. (Note - If you already are calling the rewrite engine on you don't have to do it again, just drop the two lines below that)
RewriteEngine On
RewriteCond %{HTTP_HOST} !^www\.
RewriteRule ^(.*)$ http://www.%{HTTP_HOST}/$1 [R=301,L]