Infinity Scroll Looping Bug

<?php
/**
 * The template for displaying Category Archive pages.
 *
 * @package WordPress
 * @subpackage Twenty_Ten
 * @since Twenty Ten 1.0
 */
?>
<?php get_header(); ?>
<!-- This is the blog page -->
<div class="blogwrapper">
<!-- Categories Sidebar -->
			<div class="categories">
			<h2>Categories</h2>
			<ul>
				<?php wp_list_categories('orderby=name&title_li=&child_of=13'); ?>
			</ul>
			</div>
		<!-- Finished Categories Sidebar -->

	<div class="blog">
		<div class="content" id="content">
			<div class="posts" id="posts">
				<?php $catname = wp_title('', false); ?>
					<?php query_posts("category_name=$catname"); ?>
						<?php $posts = get_posts("category_name=$catname"); foreach ($posts as $post) : start_wp(); ?>

							<?php if ((function_exists('has_post_thumbnail')) && (has_post_thumbnail())) : ?>
								<?php $image = wp_get_attachment_image_src( get_post_thumbnail_id( $post->ID ), 'single-post-thumbnail' ); ?>
									<div class="post">
										<a href="<?php the_permalink(); ?>" title="<?php the_title(); ?>" class="nolinkborder">
											<img src="<?php echo $image[0]; ?>">
										</a>
									</div>
								<?php else: ?>
							<?php endif;?>
				<?php endforeach; ?>
				<div class="pagination">
					<?php previous_posts_link('Newer &raquo;'); ?>
					<?php next_posts_link('&laquo; Older'); ?>
				</div>
			</div>
		</div>
	</div>
</div>
<!-- Finished Blog Page-->
</div>
<?php get_footer(); ?>