Multiple loop issue

Hi. I’m having an issue using multiple loops in an archive.php template.

I’m using a custom loop combined with the default loop of wordpress.

In the fist part, I want to call posts that are in both categories “features” (cat id=4) and “surf” (cat id=5). So, I use a custom loop that makes this to work.
NOTE: I also use the “features” category in a custom loop at home page. So, in home page I call ALL the posts in features category, don’t care if is in surf, skate or snow categories.

In the second part I call (using default loop function) all the post in current category, excluding posts in features category for current category (because I call it in first loop, of course). But…I’m having an issue with post_per_page query string function. I want to display 4 post per page under features posts. But its have a conflict with displaying post because of post in features category. I only get 4 minus X features posts. So…if I have 2 features posts, I get only 2 posts displayed.

I know that if I set showposts=1 for features post and put post_per_page = 5…I will get 4 posts under features posts.
But the trouble is that I want to post X number of features posts because I want to make a features posts slideshow via javascript. So I need to display always 4 posts under features posts, don’t matter how many features post I have. I was looking for a solution at wordpress forums and other blogs, but I can’t find a solution (maybe I’m doing something wrong).

Basically, I need to exclude features post from default loop for archive.php template and always show 4 “normal” posts.

Here is my code:

<-- custom loop to display features surf news. Always on top in all category pages -->
<?php if (is_category('surf')) { ?>
<?php query_posts(array('category__and' => array(4,5))); ?>
<?php if (have_posts()) : ?>
<div id="features-surf">
<div class="features-container" >
<?php while (have_posts()) : the_post(); ?>
<--- my stuff --->
<?php endwhile; ?>
</div>
</div>
<?php endif; ?>
<?php } ?>

<--- default loop to display remaining posts in surf category. 4 posts per page -->
<?php query_posts($query_string.'&posts_per_page=4'); ?>
  <?php if (have_posts()) : ?>
  <?php $post = $posts[0]; // Hack. Set $post so that the_date() works. ?>
  <?php while (have_posts()) : the_post(); ?>
  <?php if (in_category('features')) continue; ?>
  <--- my other stuff --->
<?php endwhile; endif?>

Sorry for to much long post and my bad english.

Does anyone can help me? Thanks in advance