Well, it serves me right. After crowing about how good AuthImage is to everyone, I forgot to check it after getting my hosting company to “rebuild php with the required modules“. It was still broken on this site, meaning no-one could comment!
This time, when I accessed the authimage.php file directly asking for an image (i.e. authimage.php?type=image), I was served up the image, no problem. So I knew, now that the error was elsewhere. A quick trawl of my log files showed a lot of 404’s for /wordpress/wordpress/…/authimage.php – the duplication of the wordpress folders was incorrect so now I knew there was an error in addressing the image.
Addressing takes place in the wp-comments.php file so I corrected the error there.
All’s well now anyway, so comment away mad!