Older Posts link Not working properly

Hello,

When I go to the bottom of my posts page and click older entries it appends /page/2 to the url, but it displays the same posts. I am using a custom theme and am pretty sure that is the problem. I have contacted the theme author and he wanted ftp access, so I am looking elsewhere for help. Here is my query code before the loop:
<?php $page = get_query_var('paged'); $args = array('paged'=> $page, 'posts_per_page'=> get_option('posts_per_page'), 'caller_get_posts' => 1 ); query_posts($args);?>