On my site here is a K2 article with a reCaptcha comment. I have in both spots, Joomla and K2, changed the theme to "red.' As can be seen on my site it is not displaying and I just upgraded to K2 2.6.7. Meanwhile on Google's page the red theme looks like this like this .

This is a conflict with your template's css.
thirdparty.css line 1

you have to remove the background: none !important; attribute.

Thank you Krikor.

Now the question is how to remove the !important statements. Though I appreciate these compiled CSS files, they can be a difficult thing at times. Especially when template developers use "!important" all the time.

With your help I figured it out and thank you kindly.

Cordially,
A. Wayne Webb

You 're welcome,

I'm glad you fixed it.

the filename you need to edit is thirdparty.css