no drag and drop anymore since WP 3.5 update

Nobody could comment on my blog anymore since I updated to wordpress 3.5.

I have the newest version of Sweet Captcha running, but the drag and drop is completely unresponsive. I just can’t drag anything. I don’t see any error codes coming up either.

https://www.ads-software.com/extend/plugins/sweetcaptcha-revolutionary-free-captcha-service/