Captcha not working

I am in the process of transferring my website to a new host - I have transferred all files/database and am testing the forms before I change the nameservers to the new host.

Previously captcha has been working perfectly - but now the image will not show up? Example -

http://184.154.44.114/~vine2win/index.php?option=com_chronocontact&chronoformname=OL1

as opposed to the same form:

http://vinetowine.com.au/component/chronocontact/?chronoformname=OL1

Hi individu8,

The image file is generating a 500 error.

500 Internal Server Error

The request was not completed. The server met an unexpected condition.
184.154.44.114/~vine2win/components/com_chronocontact/chrono_verification.php?imtype=0 (port 80)
Please forward this error screen to 184.154.44.114's WebMaster.

This will be something about the server configuration so you should check with your host. We've seen similar problems before; if I remember correctly they happen when mod_security is enabled and/or the file permissions don't allow a file type of PNG.

Bob