AJAX Scroller not showing all content items

I get 500 Internal Server Error on this file: www.catchlight.com/dev/naturalgardener/m....php?m=84&d=prev&c=0

Check your server settings. This file must be allowed to execute.

File permissions are set to 664 on my server. Per your FAQ, I tried 644 on this file and it did not help.

The directory "modules/mod_ajaxscroller/" is set to 775 by default and I changed it to 755. This does not make any difference either.

Also, your FAQ mentions the directory "modules/mod_ajaxscroller/mod_ajaxscroller/", but I do not see that directory on my server?

It looks like the query string is making the problem. Without it the file is executed fine. So it must be some security setting on the server that blocks it. In .htaccess or somewhere else. Talk to your web host.

Hmmm. OK, I will look into that.

Thanks,
Howard

Do you have any idea what I might be looking for?

I said everything that I could about it. I can't fix your server. Present your web host the link that returns 500 Error and tell them to fix it:
www.catchlight.com/dev/naturalgardener/m....php?m=84&d=prev&c=0
If you try www.catchlight.com/dev/naturalgardener/m...ller.php?m=84&d=prev it works, so the problem is in &c=0 in query string. It is some stupid security setting somewhere on the server that blocks it.