Photo Visual Confirmation Issues

Hi there

I have been running the mod on my phpbb3 site for some time now, but following a server upgrade to Debian Etch and PHP5 - the images will not load.

I can't see any reason for it - The mod is functioning perfectly except for this.

Infact, under the admin panel, the preview is perfect - No issues at all.

http://bianca.wolflan.com

If you go there and try to register, you will hopefully see what I mean.

I would be greatful for any help as this is a forum for people with Albinism and the normal captcha method makes it very hard for them to register.

Thanks