WP3.0 – no admin panel

Hi

I just installed a fresh version of WP3.0
but when i access the admin panel, there is nothing besides the menu (in firefox there is nothing at all)

if i view the source of the page, the html is there.

i first thought that then it must be something with the CSS and in my pursuit i tried insertting a space in the admin-header.php:

do_action(‘admin_enqueue_scripts’, $hook_suffix);
do_action(“admin_print_styles-$hook_suffix”);
do_action(‘admin_print_styles’);
do_action(“admin_print_scripts-$hook_suffix”);
print ” “;
do_action(‘admin_print_scripts’);
do_action(“admin_head-$hook_suffix”);
do_action(‘admin_head’);

and now it all works like a charm!

but my reason for this thread is .. why does this happend? when i look though the forum i can see im not the only one with the “blank page” problem.