FormBuilder and Captcha Problems

[Frankie]

I just installed the Captcha module so I could click the "enable" box on FormBuilder's Captcha Tab.
Now when sending a form, the Captcha shows up fine and it will detect an incorrect entry by simply reloading the page and displaying a new captcha image.

BUT, upon entering the CORRECT text and clicking "submit" my browser hangs up, redirects me to the homepage URL but with a blank white screen, then I have to close the browser completely before I can even access the DOMAIN again! It's very strange indeed.

I'm using the sendmail method and it worked great until I enabled the Captcha.
I've tried both the hn_captcha and the PhpCaptcha, both are showing up but neither send the message, both freeze up the browser. I've tried two different browsers...same result.

Is anyone else experiencing this problem or know of a solution for me? Thank you in advance.

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Mac OS X 10.5 on both Firefox 3.0.4 and Safari 3.1.2
CMSMS 1.4.1 "Spring Garden" (MLE Edition)
FormBuilder 0.5.5
Captcha 0.3.1
CMSMailer 1.73.14 using PHP sendmail method (works great until I enable the Captcha)

[CMSMS-Fan]

That is funny I have spent all day trying to fix a form which was working with Captcha now all I get is an error saying I have entered the wrong letters.....  I have done this a hundred times and am sure I am doing correct letters, I even put my glasses on, yet everytime it reports I have used the wrong letters.....  I have tried both everything but having upgraded Captcha to 0.3.2 and selecting GD Captcha it is now working......  It still doesn't work using PHP or hn?
There is no reason for this as it was working fine until today......  Unless my server provider has made some changes today and you happen to share the same provider.