They server was upgraded Sunday night to:
Apache web server to version 2.2.10 (from 1.3.4x).
Operating system from CentOS 4.7 to CentOS 5.2.
Ever since the cforms-captcha.php has been causing issues.
They said 'cforms-captcha.php is not closing properly' ???
I've seen my processes, they are all cforms-captcha.php when my server locks and gives me 500 errors.
As servers 'upgrade' maybe more of the 300 000+ downloads will have problems. I've used it for a year before it cause me any issues. It was the server upgrade that started the problems.