List all posts in category

I am not able to list all category posts with this code… Is there anything I’m doing wrong?

$cat_id = get_cat_ID('Building Designs');
	$args=array(
	  'cat' => $cat_id,
	  'post_type' => 'post',
	  'post_status' => 'publish',
	  'posts_per_page' => -1,
	  'caller_get_posts'=> 1
	);
	$my_query = null;
	$my_query = new WP_Query($args);
        while ($my_query->have_posts()) : $my_query->the_post();
        the_permalink();
        endwhile;

or

$args=array(
	  'cat' => 4,
	  'posts_per_page' => 2,
	);

// The Query
$query = new WP_Query( $args );

// The Loop
if ( $query->have_posts() ) {
	while ( $query->have_posts() ) {
		$query->the_post();
		echo '<li>' . get_the_title() . '</li>';
	}
} else {
	// no posts found
}
/* Restore original Post Data */
wp_reset_postdata();

Both of them do not display all the posts. It displays only a few. When I change the

posts_per_page=>-1

to say 2, it still displays more than 2.

http://wordpress.org/extend/plugins/list-category-posts/