Me again.
After I spend hours looking for the ‘natty_show_pagemenu’ function to edit and exclude pages, i tried it with list_pages.
Well – it works. Make sure you do not have bad typos!
The Code in my header.php:
<div id="menu" class="topnav">
<ul>
<?php wp_list_pages('title_li=&depth=-1=&exclude=65'); ?>
</ul>
</div>
I added the ‘topnav’ class, because i’ve already styled the menue with this class.
Good luck!