[TYPO3-english] Powermail captcha with sr_freecap

[Man Math]

Hi List,

I am working on TYPO3 6.1.7. I have installed extension powermail 2.0.10 
and sr_freecap 2.0.8.
I want to configure powermail form to use captcha generated by 
sr_freecap but I tried to follow the typoscript manual but it does not 
work to me. It always show only calculating captcha.

plugin.tx_powermail.settings.setup.captcha.use = sr_freecap

Are there any suggestion or am I in wrong configuration.

Thanks,
Man

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