[cory_booth]

Originally Posted by Datenpapst

I am using this one:
http://testforum.c-arena.com/demoslideshow.php

atm as an iframe

My code in the admincp is:

ob_start();

require_once './demoslideshow.php';

$output=ob_get_contents();
ob_end_clean();

Still got the problem

For yours, since it is a different slide show... I am not sure how it is rendered.
But I would suggest, follow very closely the code's <div> tags and make sure all <table> <tr> <td> <div> tags are open and closed properly.

Sometimes I start in the middle of the code and slowly work my way out until I spot a potential problem.

I am assuming this is the issue... Your slider has some unclosed tags...