No, sorry, never got a response from the developer.
So, no help for this?
I do have one other piece of information. If I just reply to a blog comment using my Facebook identity, the reply works. My reply only fails (as specified in my original post) when I also click the “Post to Facebook” check box.
I couldn’t figure out what was happening till I found this thread. Thanks guys. I’m also hosted on HostGator and they found the same issue with mod_security.
