Captcha image error

I am having a problem with the CB Captcha that I downloaded when I was a Advanced member

I run two sites which are both the same setup, one main, one backup/test.


On main site (2) the CB Captcha has stopped working both in the back and front ends (see pic) yet on Site 1 all is fine

Any ideas
Joomla! 2.5.10
CB 1.9
cbcaptcha_2.4

I have removed-reinstaled cb captcha_2.4

I asked this question 4 weeks ago and I haven't got a answer so I will re-post it here

I assume you mean this thread:

www.joomlapolis.com/forum/118-captcha/192150-captcha-image-there-but-no-letters?start=24

well, posting on an existing thread that has been resolved for others is a great way to confuse anyone wanting to help.

Since the plugin is working was working and as you state it stopped working, then it is safe to say that it is not a potential problem with the plugin and that something else changed on your environment that caused this.

Try changing the last parameter in your plugin settings to use different method.