[Plugin: More Fields] Unable to delete values

Hi. I’m using the plugin and is working ok (I’m unable to limit custom field boxes to certain categories but by the moment it isn’t necessary). My problem is that although I erase or edit the values the post with this custom fields are still listed.

I think that the values are still grabbed into database.

This is my code

<?php $args=array('post_type' => 'post', 'post_status' => 'publish', 'meta_key' => 'bannerHome', 'posts_per_page' => 5, 'post__not_in'  => get_option('sticky_posts'));
	$my_query_bannerhome = new WP_Query($args); ?>
    <?php if ($my_query_bannerhome->have_posts()) : while ($my_query_bannerhome->have_posts()) : $my_query_bannerhome->the_post(); ?>
    <div class="post" id="post-<?php the_ID(); ?>">
	<?php if ( function_exists( 'get_the_image' ) ) { get_the_image(
		array(
		'custom_key' => array( 'bannerHome' ),
		'default_size' => '',
		'attachment' => false,
		'link_to_post' => true,
		'image_scan' => false,
		'width' => '980',
		'height' => '360',
		)); } ?>
    </div>
    <?php endwhile; endif; wp_reset_query(); ?>

How can I fix it?

Thanks in advance.

ps: sorry for my english