I am using the latest gravity forms to date. On a multi site installation.
And I am using the Captcha field, but none of the captcha images are displying when using the maths challange or the Really simple captcha plugin. And this is not the first time it has happened on my multisite installions.
My multisite set up / config is exactly as the codex explains.
Anyway, see link.. Maths Challenge - http://i.stack.imgur.com/NlolG.png
Then this is Really Simple Captcha - http://i.stack.imgur.com/Zr86y.png
OK... so where is the location of this image is - http://i.stack.imgur.com/RHLFe.png
Well, seems to be pointing to the its normal location, let check it actually exists? - http://i.stack.imgur.com/uFr9z.png
And there it is, it actually exists in the folder, but if I try and access it by the url, I get Internal Server Error page!!! So what is going on?
Why does this happen? Maths challenge is standard with gforms is it not? If it is, does this mean it is a bug with mu installs?
Any help if you can would be great thanks.