When trying to send a test mailing, the preview and test email box appears to be improperly drawn and the "Send Test" button doesn't appear to work. I tried upgrading CiviCRM (from 4.6.2 to 4.6.4) but the problem persists.
CiviCRM 4.6.4, Wordpress 4.2.1, Apache 2.4, PHP 5.6.9-1, Mariadb 10.0, Debian Wheezy/Sid hybrid
I notice this was an issue in the beta forums previously http://forum.civicrm.org/index.php/topic,33598.msg142461.html#msg142461
Any ideas how to fix it?