Hi,

did a fresh install of FireBoard 1.0.4 on Joomla 1.5.2 in legacy mode

I created a forum

I allow non registered users to post, but with the CAPTCHA turned on

when testing this, I see the CAPTCHA image, giving me a code to enter,
however, when I entered that code, it came back with "CAPTCHA code not correct"

I tried both in Firefox and IE7

I won't be using FB without CAPTCHA

L.

I've been suffering from the same problem myself, under the same circumstances.
What I've been able to gather from various improvised debugging, is that the session started by the randimImage.php captcha-script does not persist in the post.php handler, causing the code entered by the visitor being compared to nil (and thus always fail). Attempts to pass custom session identifiers did not seem to help.

A better solution would probably to use a captcha image generator that uses the Joomla framework and JSession class, rather than being a standalone php-script. I haven't had the time to look much further at this myself, so I can't speculate in how much work such a change would be, or how such an implementation would be done in detail.

One thing that just came to mind, is that I currently use the Database Session handler with Joomla1.5 - whereas the standalone randomImage.php script would use the default handler (file). Although a session may not have been opened previously, I believe the new handler would've been registered already when post.php calls session_start() making it use the database rather than files.