Loop doesn’t want to end :(

Hi,

I’ve got a loop in my header

<?php query_posts('category_name=feature&amp;showposts=4&amp;orderby=rand'); ?>
								<?php while (have_posts()) : the_post(); ?>
								<li><a href="<?php the_permalink(); ?>" title="<?php the_title(); ?>"><span><?php the_title(); ?></span></a></li>
								<?php endwhile;?>

And i want to create an archive page so in the main content area i’m starting the loop by standard procedure :

<?php if (have_posts()) : ?>

And it acts like the loop from the header wasn’t closed, because it shows me 4 posts from the Feature category …

Any help ?