Sorry for not checking back. Thanks for finding the issue with #1. I'm using your original plugin code (1.9.3).
Note that the flash audio option isn't made available in Firefox, although it is available in IE8 and Google Chrome. You can verify that on my site.
By the way, I installed 1.9.5 and the CAPTCHA image stopped being displayed. I encountered the following PHP 'warning' in secureimage.php:
`PHP Warning: Cannot modify header information - headers already sent by (output started at C:\inetpub\GameShirtz.com\wp-content\plugins\si-contact-form\captcha-secureimage\securimage.php:642) in C:\inetpub\GameShirtz.com\wp-content\plugins\si-contact-form\captcha-secureimage\securimage.php on line 987
[07-Dec-2009 10:56:20] PHP Stack trace:
[07-Dec-2009 10:56:20] PHP 1. {main}() C:\inetpub\GameShirtz.com\wp-content\plugins\si-contact-form\captcha-secureimage\securimage_show_medium.php:0
[07-Dec-2009 10:56:20] PHP 2. Securimage->show() C:\inetpub\GameShirtz.com\wp-content\plugins\si-contact-form\captcha-secureimage\securimage_show_medium.php:66
[07-Dec-2009 10:56:20] PHP 3. Securimage->doImage() C:\inetpub\GameShirtz.com\wp-content\plugins\si-contact-form\captcha-secureimage\securimage.php:487
[07-Dec-2009 10:56:20] PHP 4. Securimage->output() C:\inetpub\GameShirtz.com\wp-content\plugins\si-contact-form\captcha-secureimage\securimage.php:589
[07-Dec-2009 10:56:20] PHP 5. header() C:\inetpub\GameShirtz.com\wp-content\plugins\si-contact-form\captcha-secureimage\securimage.php:987'
When running your test it encounters a warning trying to execute the same statement:
$gd_info['JPEG Support']
I'm sending you a URL to a phpinfo page of my site in case it's helpful.
Hopefully this will help you track down thes problems. Thanks for your work on this and your responsiveness. It's very much appreciated.
Thanks,
David