There's a few things that could be causing the captcha to not display or not work. All of the issues are generally very easy to solve though. To diagnose, can you let me know:
* The URL of a site you're working with, so we can test.
* What social network you're trying to login with
Finally, please post from the account you subscribed to JFBConnect from. Priority support is for active subscribers only.
Thanks,
Alex