Guest book downloaded but cant see the security code

[cnl83]

I have downloaded and installed 6 different guestbooks, but everyone of them wont show the security code you have to enter to prevent spam. What could the problem be? There is just an X where the image goes.

 

http://www.menardinfosystems.com/guestbook/

[tippy_102]

The guestbook most likely uses GD to generate the image. Do you have GD installed? If so, post the code that generates the image.