Since moving to a different server, with PHP 5.2.17 and MySQL 5.1.56, I get a warning with your Capchas as follows:ERROR: si-contact-form.php plugin says GD image support not detected in PHP!
Contact your web host and ask them why GD image support is not enabled for PHP.
ERROR: si-contact-form.php plugin says imagepng function not detected in PHP!
However, our server admin checked and found this:
[root@server ~]# php -m | grep gd
I've disabled the Capcha pending a resolution. Do you have any ideas?