Joomla 3.4.1 error: Error reCAPTCHA plugin needs a site key to be set in its parameters. Please contact a site administrator.

Hi,I have just registered a new reCaptcha (v.2), and dropped in the site and secret keys into Joomla's (v.3.4.1) default captcha-reCaptcha plugin. It comes up with the following message each time. Error reCAPTCHA plugin needs a site key to be set in its parameters. Please contact a site administrator. I have deleted the original key, and created a new one, with the same result.I have swapped the site/secret key around, with the same result.I can't find any solutions on the web, and only one other post mentioning the same problem, which also remains unresolved.Any ideas? Thanks. -- 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.