Cannot load requested file?

[eluser]parham90[/eluser]
Hi all,
I have got a problem that has me confused. In my controller, I have put:

Code:

$this->load->library('recaptcha'); //Load the recaptcha library I have downloaded from the
//wiki.
$data['captcha'] = $this->recaptcha->get_html();

I have verified that:
1. The recaptcha.php file is in my application/libraries folder.
2. Recaptcha.php is capitalized.
3. The class is:

Code:

class Recaptcha {
...

So, what could be wrong here? I don't think setting the .htaccess to rewrite all requests except index.php and images folder is causing this?

Thanks in advance!