Using K2 with jezReCaptcha plugin causing errors

The Issue

Basically that you've installed JoomlaEZ's ReCaptcha Integrator plugin to protect your forms ("type two words" captcha) and then installed K2 Comments to use it's own ReCaptcha.  If you try adding a comment, you may get something like the following:

Fatal error:
Cannot redeclare_recaptcha_qsencode() (
     previously declared in /public_html/plugins/system/jezReCaptcha/recaptcha-php-1.10/recaptchalib.php:47
)
in /public_html/components/com_k2/lib/recaptchalib.php on line 67

I've managed to fix this in my site. Because you already force the recaptcha feature in your registration form and contact form (on this website I just went recaptcha-happy), then there are some settings you need to change in the plugin options:

• Inclusion Syntax = NO
• Auto-verify =YES

Update 16.NOV.2009

I don't see this supported anymore so I wouldn't recommend using the JezRecaptcha plugin.  In fact I'm not impressed with Recaptcha as it's sound alternative doesn't work and the text form is hackable.

I will be changing this over throughout the site... I may keep recaptcha for the comments feature on K2 articles but it should be considered low security.