PHP recaptcha not working. Key Issue?

After downloading the PHP reCAPTCHA package, I went ahead and threw the "example-captcha.php" file into my LAMP test environment, along with the library file. After confirming that it worked, I tried adding the example page (& library page) to my web server, and viewing the page from my browser. For some reason it is not working. I have triple checked my public & private keys, and I tried using my server's IP instead of the domain, but still no luck. I read that any valid keys work with localhost, so I figured that it must be a key issue (perhaps my domain is not being recognized properly). Could there be issues because I am using HTTPS? Also, it does not have to be in the root folder of my website correct? I created a seperate folder in the root of my site's serverThanks -- You received this message because you are subscribed to the Google Groups "reCAPTCHA" group. To unsubscribe from this group and stop receiving emails from it, send an email to recaptcha+unsubscribe@googlegroups.com. To post to this group, send email to recaptcha@googlegroups.com. Visit this group at http://bit.ly/1dkFnYd. For more options, visit http://bit.ly/P65DvS.