Cannot change CDN origin configuration even after complete reinstall

I am using this plugin for CDN using Cloudfront. While everything works as expected, I am trying to change the CDN origin after creating a new S3 backed Cloudfront deployment. There appears to be no way to modify the origin under CDN settings. I have removed and reinstalled the plugin to no avail. I have dropped and reinstalled the database from a snapshot prior to installing it. I have even reinstalled WP from a snapshot after deleting the entire blog file structure (including deleting advanced-cache.php, the w3tc-config folder, the entire w3 installed plugin folder, all the .htaccess and conf file configurations), but every time I go back to the plugin page the origin field doesn’t allow me to change it. I’ve also tried new browsers from other computers to ensure it wasn’t cookie related. How do I modify the origin setting?!????

http://wordpress.org/plugins/w3-total-cache/