This hack works for all the posts, so also my monthly pages are set to a maximum of 10 posts now, and I don't want that. So I set the post-paged to 100 for the months to display in total without paging, and in the bulletin-page-navigation.php I used to following lines to force the function to use not 100 but 10 posts per page.
$posts_per_page = 10;
( I put this right after the
global $p, $what_to_show, $request, $posts_per_page, $wpdb;
global $HTTP_SERVER_VARS, $paged;
global $querystring_start, $querystring_equal, $querystring_separator;)
and further on I even manually changed this line
$max_page = ceil($numposts / 10) ;
But it doesn't work. The months show up correctly now, but for the categories I don't see the pagenumbers?
What am I doing wrong here?