phpJoel

I removed another copy of jquery that the theme was adding, and it works fine now.
Thanks for the suggestion.

I had this problem too, and am currently testing with the add_action() call commented out.
So far, so good..

It’s from the file: sfc-register.php

//add_action('sfc_login_new_fb_user', 'sfc_register_redirect');
function sfc_register_redirect() {
	wp_redirect(site_url('wp-login.php?action=register', 'login'));
	exit;
}

YMMV

Seems that you need to enter the FeedBurner.com URL’s in those boxes.