We've used this mod on 4.1.10 and 4.1.11 with no issues but today suddenly the captchu doesn't show and we are getting a ton of these types of errors in the server log:
[Tue Feb 10 13:07:07 2009] [error]
PHP Warning: fclose() [<a href='function.fclose'>function.fclose</a>]:
3 is not a valid stream resource in /home/userwww/public_html/enquire.php on line 60
Line 60 in the enquire.php file is the fclose($Handle);
The only significant change to the server was updating PHP from 5.2.6 to 5.2.8 that we needed for another bit of software to run faster... I wonder if anyone has seen this yet?