This is the message from Go Daddy:
Thank you for contacting Online Support. After reviewing your account we see that you changed the nameservers for your domain recently. This will change the email settings for the domain (MX Records). You will need to contact your email provider to get the correct MX Records to use and then contact WordPress to locate the correct area to enter them in to their system.
The settings should be
Blog url: http://nvgc.wordpress.com/