my recommendation would be to see if you can view the images at all in your web browser, if they load fine in the browser it'd likely be a graphics processing issue.
they should be:
http://www.yoursite.com/forum/images/captcha/backgrounds/background1.jpghttp://www.yoursite.com/forum/images/captcha/backgrounds/background1.jpgImageMagick6 isn't license wear, it's opensource. They can install it from their webpage (
here).
and yes, you should be concerned that the background images aren't loading; likely it's due to a limitation in GD, or at least on your system; hence my recommendation of IM.
