[eluser]TheFuzzy0ne[/eluser]
Is there any difference in the PHP versions? You might want to try setting error_reporting to E_ALL (if it's not already), and see if anything seems out of the ordinary. You might also want to try calling on $this->form_validation->error_string directly, to see if it actually stores anything.
Also, don't thing that this line:
Code:
include(base_url()."system/application/libraries/fckeditor.php");
will work as expected.
I would have thought something like:
Code:
include(APPPATH . 'libraries/fckeditor.php');
would be more effective, and much faster, too.
I'd also suggest that you look for any other include statements that use that format.