Pagination issue [duplicate]

Question

Possible Duplicate:
Pagination not working with custom loop
Custom Post Type Pagination & duplicate posts

Content is duplicating on one particular page template only - the photo gallery page.
Additional galleries are posted and adding pages but same 1st 3 galleries show when you click on the different pages. Any advice is much appreciated!

Here's the current php code:

<?php
/*
Template Name: Photo Gallery
*/
?>
<?php get_header(); ?>
<?php $options = get_option('dancefloor_theme_options_layout'); $theme_layout = $options['design']; if (!$theme_layout) $theme_layout = "left";?>
    <div class="container">    
        <div class="contents-<?php echo $theme_layout ?>"  style="padding-top:16px;">
               <?php $query = new WP_Query(array( 'category_name' => 'gallery' )); if ( $query->have_posts() ): while ( $query->have_posts() ) : $query->the_post(); ?>     <div class="post-wrapper">
        <h2 class="title"><a href="<?php the_permalink() ?>"><?php the_title();?></a></h2>
        <div class="post-container gall">
            <h4 class="post-date"><?php the_time('M'); ?><span><?php the_time('j'); ?></span></h4>                                  
           <div class="featured-pic-wrapper gall">
                        <a href="<?php the_permalink() ?>">
<?php gorilla_img('gallsingle');?></a>
                    </div>  
            <div class="post-data">       
            <div class="btn-wrapper">
                <a class="read-more-btn gall" href="<?php the_permalink() ?>"><?php _e('View Gallery &raquo;','language');?></a>
                <p><?php the_tags('Posted in: ', ', ', ' '); ?></p>
            </div>
            </div>           
      </div>
    </div><!-- post wrapper closed -->
    <?php endwhile; endif; ?>
    <?php theme_pagination( $query->max_num_pages); ?>
            </div><!-- content closed -->
            <?php get_sidebar(); ?>
    </div><!-- container closed -->
<?php get_footer(); ?>