Hi Mike,
I have the same “configuration” with Andbia, using SI Captcha and Facebook Fan Box. This combination was working fine until yesterday. I was still using SI Captcha v2.5.0 when the problem occurred. Upgrading to v.2.5.1 doesn’t solve the problem either.
SI Captcha runs fine whenever I enter the comment as registered user and enter the Captcha code (I left the ‘Hide Captcha for registered users’ option, unchecked).
Apparently Facebook’s developer has changed something in their widget code recently. The Facebook Fan Box I’m using is not a WP plugin by the way. Maybe SI Captcha has the same session name as Facebook Fan Box?
