When I set up a new form, I want to use the Captcha option built into Gravity Forms. Trouble is that after I select the Settings options under the Forms plug-in menu, I am unable to save the public key that Captcha sent me. What happens is that WP seems to over-ride this by replacing the key with the Username that I use for wp-admin login to the WP site. The Username is inserted against a green background and nothing I do allows me to save the Captcha public key instead. Diagnosis? Suggestions? Thanks.