Before changing anything, the code was as follows:
<img src="../WA_ValidationToolkit/WAVT_CaptchaSecurityImages.php?field=Send_enquiry_group_Security_code&transparent=false&font=Fonts/MODERNA_.TTF" alt="Security Code" class="Captcha" />
Then I changed the following:
1) the font family to Moderna
2) grid size to none
3) noise amount to none
And the code changed to the this:
<img src="../WA_ValidationToolkit/WAVT_CaptchaSecurityImages.php?field=Send_enquiry_group_Security_code&transparent=false&noisefreq=25&gridfreq=50&font=Fonts/MACTYPE.TTF" alt="Security Code" class="Captcha" />
But the captcha image doesn't look any different. I mean the noise is completely the same even though I set it to none.
I'm using Mac OS 10.5.8. Could this be a bug?