It's not able to register a new user via this module when captcha's enabled !

<p>when captcha's enabled in back-end you could not register at the front-end with this module, you would get the error message&nbsp; "Empty solution not allowed".</p>
<p>Check this thread&nbsp; http://www.joomlart.com/forums/showthread.php?73283-No-K2-Smart-Search-plugin-for-Ja-Orisite-template&amp;p=318268#post318268&lt;/p>