The verification words are incorrect

Even when I type the two words correctly, I always get "The verification words are incorrect." and my form generated with Doc2Form will not submit.  I had to get my own public and private keys from the reCAPTCHA website to get the reCAPTCHA object to show at all.

Any idea what could be wrong?


This is a companion discussion topic for the original entry at https://our.umbraco.com/forum/11565-the-verification-words-are-incorrect