(Math) Captcha always giving an error that input was wrong when it isn't!

(Math) Captcha always giving an error that input was wrong when it isn't! I've got Math Captcha in the login page and it's malfunctioning - permanently. HELP! JS -- You received this message because you are subscribed to the Google Groups "reCAPTCHA" group. To unsubscribe from this group and stop receiving emails from it, send an email to recaptcha+unsubscribe@googlegroups.com. To post to this group, send email to recaptcha@googlegroups.com. Visit this group at http://bit.ly/1dkFnYd. For more options, visit http://bit.ly/P65DvS.