Prevent shortcode being wrapped in pre div tag by default

I forgot to add there are no <pre> tags in the function I added, it appears to be automatically generated by the theme.

Here is the function Im using

function myLoop($atts, $content = null) {
	extract(shortcode_atts(array(
		"pagination" => 'true',
		"query" => '',
		"category" => '',
	), $atts));
	global $wp_query,$paged,$post;
	$temp = $wp_query;
	$wp_query= null;
	$wp_query = new WP_Query();
	if($pagination == 'true'){
		$query .= '&paged='.$paged;
	}
	if(!empty($category)){
		$query .= '&category_name='.$category;
	}
	if(!empty($query)){
		$query .= $query;
	}
	$wp_query->query($query);
	ob_start();
	?>

	<?php while ($wp_query->have_posts()) : $wp_query->the_post(); ?>
		<h3><a href="<?php the_permalink() ?>" rel="bookmark"><?php echo the_title(); ?></a></h3>
		<?php the_excerpt(); ?>
	<?php endwhile; ?>

	<?php if(pagination == 'true'){ ?>
	<div class="navigation">
	  <div class="alignleft"><?php previous_posts_link('« Previous') ?></div>
	  <div class="alignright"><?php next_posts_link('More »') ?></div>
	</div>
	<?php } ?>
	<?php $wp_query = null; $wp_query = $temp;
	$content = ob_get_contents();
	ob_end_clean();
	return $content;
}
add_shortcode("loop", "myLoop");

Such a great theme, any chance anyone can help with this problem? Please…