I've got Fireboard 1.0.5RC1_b718 running in my brand new Joomla 1.5.6 installation

Installation was successful, but after every post to a forum, I am getting a redirect to a page which returns the following error:
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Not Acceptable

An appropriate representation of the requested resource /j15/index.php could not be found on this server.

Additionally, a 404 Not Found error was encountered while trying to use an ErrorDocument to handle the request.
Apache Server at (my domain).com Port 80
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I've searched these forum extensively and have found several references to people having a similar problem with an after-post redirect, but NO SOLUTIONS. Many of these requests for assistance are quite OLD and still haven't been answered (including one that I posted in a different category which has no responses for many days).

Can anyone address this with a solution, or point me to something actually useful?

Well. Finally found a way to get around this:

This was posted in another thread, but it seems to work

Turning redirection off:

edit the post.php file in the directory of the template you are using.

in the default template post.php line 419 and 441 (inside the script tags)

Code:
setTimeout("location='<?php echo sefRelToAbs(JB_LIVEURLREL.'&func=view&catid='.$catid.'&id='.$pid).'#'.$pid;?>'", 3500);


comment these lines (add // at the beginning of the line)

This disabled the automatic redirect for me and fixed the problem.

That post only worked for the 1.0.4 version. The 1.0.5RC1 cannot be fixed using that disable of the redirect.

BUT:

After struggling with this issue for a while, I finally contacted my hosting service. They reported this:

That particular autoredirect is running afoul of mod_security rule 950006.

They exempted my sites from that rule and everything is working now.

If you are having this problem...this is the solution.

I hate un-resolved threads!

Thanks, we will have a look to this issue, to not having to go pass that rule on future releases