Facebook Auth Dialog Box Pops Up then Disappears

I have installed JFBConnect on a site I'm developing (www.washingtonspeak.com). When I click the Facebook login button the Auth Dialog box briefly pops up then disappears without completing the registration process. I have tried making adjustments in the configurations for both JFBConnect and Jomsocial with no such luck.

Any thoughts as to why this is happening?

You can disregard this request for help. I found my problem. The app on Facebook was still in Sandbox mode. When I Disabled Sandbox the Auth Dialog now works properly.

Thanks
Tracy