Showposts not working in IE9

Hello,
Bit of a weird problem I’m having here. Basically I’m using a Jquery scroller to display the blog entries, so I’m trying to display all posts, and using ‘showposts=1000’ works fine in all browsers apart from IE9. It even works in IE8, and IE7. But in IE9 it’s not pulling in all the entries and for some reason it’s displaying them incorrectly when clicked. Which is frustrating because it works in IE8, 7, firefox, chrome and safari

you can see it here: https://www.systemofthinking.co.uk/test/

<?php query_posts('showposts=10000&offset=1'); ?>
<?php if (have_posts()) : while (have_posts()) : the_post(); ?>
<div class="cn_content">
<h2 class="main"><a href="<?php the_permalink(); ?>"><?php the_title(); ?></a></h2>
<span class="date-main"><?php the_time('d M Y') ?></span>
<div class="border2">
<?php the_content('Read the rest of this entry ?'); ?>
</div>
</div>
<?php endwhile; endif; wp_reset_query(); ?>