Ultimate Facebook refreshes page but doesn't log in

Hi there,

On the home page of my site http://tenderlovingcalls.com, I've installed the Ultimate Facebook plug-in and styled the button to appear alongside the standard BuddyPress login form.

When I click the button, the Facebook connect pop-up appears properly and it authenticates me properly. When the pop-up closes, the "Login with Facebook" button transforms into the "loading" GIF animation, and the page refreshes itself. Upon refresh, I'm still logged out (e.g., nothing changes).

Can you walk me through whether this is a common problem; whether you see the same problem on the live site; and what the expected behavior should be, so I can try to track down a fix?

Thanks very much!