When I put a math captcha field in a webform, validation always fails. It's as if the answer to the question is compared with the answer to the next question, so this only validates if the next answer is the same as the current. Any ideas as where to start looking?
V.

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VDG commented

OK, this seems to work. Instead of putting a captcha field in the form, I followed the procedure as outlined here, and inserted the line 'webform_client_form' => t('Submit a webform'), //this adds captcha support to webforms in the function 'captcha_admin_settings' in captcha.module. After enabling captcha for webforms in the captcha admin menu, you get the captcha field for the selected roles. No more problems since.
If there are better suggestions that don't rely on manual editing of other modules, feel free to share them.
V.

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VDG commented
Status: Active » Closed (fixed)