Asides in Sidebar Broke

I had this code, which I got from the codex for asides posts:

<ul class="sideblog">
						<?php $my_query = new WP_Query('category_name=noteworthy&showposts=3');  while ($my_query->have_posts()) : $my_query->the_post();  $do_not_duplicate = $post->ID; ?>
						<li><?php the_excerpt(); ?>
						<small><a href="<?php the_permalink(); ?>">Permalink</a> — <?php comments_popup_link(__('No Opinions'), __('1 Opinion'), __('% Opinions')); ?><?php edit_post_link('Edit', ' — '); ?></small></li>
						<?php endwhile; ?>
					</ul>

It worked fine in 2.2.3. But when I upgraded to 2.3.3 it stopped showing my posts. I don’t get errors, its just empty.

Can someone help me out?