Joomla 2.5 + ChronoForm 4 RC3 : captcha don't appear anymore

Hi
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on an old site (Joomla 2.5 + ChronoForm 4 RC3 ) we have several front end forms with a 'captcha input' fields that worked just fine until a few months.
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Now the display is only a text field where the user doesn't know what to do : please check http://www.lmh.fr/accueil-general/accueil-emploi/candidature-spontanee
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the customer doesn't want to update his site to J3.x
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What should I do please ?
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thanks
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cyril

Hi Cyril,
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Which Captcha are you using?
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You should at least upgrade the ChronoForms to the most recent release of CFv4 and see if that makes a difference.
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You could also check for JavaScript errors on the page that might be blocking the display.
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Bob

Hi
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we used the 'captcha input' fields and there is NO JS error in the console.We used the latest v4 component, module and plugins.
Is there another captcha field we should use?
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did you go to http://www.lmh.fr/accueil-general/accueil-emploi/candidature-spontanee to see how the captcha field is displayed ?
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thanks
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cyril

Hi Cyril,
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I am pretty certain that CFv4 RC3 is not the latest release.
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Have you added the Load Captcha action in the form On Load event? That is required to show the captcha.
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Bob

Hi
As I wrote we used the latest v4 component, module and plugins. The chronoForm component is 4.0.1 . Only the plugin and module are 4 RC3
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Yes the LoadCaptch action is present in the OnLoad Event too. BUT I had to set "True Type Fonts Support" to "Without fonts support" and then the captcha appears !
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thanks a lot
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Cyril

However on another form (http://www.lmh.fr/accueil-general/accueil-emploi/les-offres-d-emploi/detail-de-l-offre?ref=312) the problem remains: the captcha doesn't appear
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but in the backend for this form , in the EVENTS, FORMS settings or LEGEND tabs there is nothing ! where could it comefrom please ?
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thanks
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cyril

Hi Cyril,
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In the thread title and in your first post you said that you are using RC3 please double-check if you have not already done so.
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There is no sign of the Captcha element in the form you linked to. I don't know why that would be. The True Type fonts problem suggests that you might be using an older version of PHP (or one without True Type fonts enabled).
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The simplest fix may be to use a different captcha?
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Bob

Hi
We removed the captcha on this second page but the problem I wrote about was that in the backend for this form , in the EVENTS, FORMS settings or LEGEND tabs there is nothing ! where could it comefrom please ?
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thanks
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cyril

Hi cyril,
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I have no idea, are there any JavaScript or PHP errors on the page?
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Bob

unfortunately no. is there a possibility to give you access ?
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thanks
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cyril

Hi Cyril,
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I am travelling today but you can PM me a superadmin login and I'll take a look when I am back at my desk.
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Bob

Hello
I answered you on PM. Can you check please ?
thanks