Formbuilder Captcha problem

[Mesmer]

(I also posted this question in an other topic but maybe this is a better place for it)

I run the latest version of cmsms and the latest version of FormBuilder and I noticed this version of FormBuilder has the option of using Captcha.

I clicked on Captcha Settings and checked the 'Use Captcha to protect form submissions?:'box
When I view my form I don't see the Captcha. When I try to submit it gives a 'wrong captcha' errror.

What do I need to do to activate captcha on my forms?

I have the Captcha module installed and it's working on my guestbook so that's not the problem.
Should I change something in the templates maybe?

[loukote]

this post: http://forum.cmsmadesimple.org/index.php/topic,13288.msg67855.html#msg67855