Sometimes I forget to amend any special queries I’ve setup within WordPress templates so that when I click on the “older posts” button I simply get the same page displayed again.
For special queries you should add the paging code below.
<?php
$paged = (get_query_var('paged')) ? get_query_var('paged') : 1;
query_posts('category_name=staff&posts_per_page=10&paged=' . $paged); ?>
