Why would wp_get_recent_posts() return nothing?

Hi all,

I’m making a basic theme at the moment and I’ve added the following to sidebar.php (it’s an include of my own creation, not one used by WordPress as such).

<p>
<h1><?php _e(‘Recent Posts’); ?></h1>
<?php wp_get_recent_posts(); ?>
</p>

However, that returns nothing but the title (and yes, there are posts on the site!).

Any ideas? Am I using the tag correctly?

Thanks!