WP2.3: Warning: array_key_exists

<?php if ( in_category($AsideId) && !is_single() ) : ?>	<ul class="asides">		<li id="p<?php the_ID(); ?>">			<?php echo wptexturize($post->post_content); ?>					<br/>			<?php comments_popup_link('(0)', '(1)','(%)')?>  | <a href="<?php the_permalink(); ?>" title="Permalink: <?php echo wptexturize(strip_tags(stripslashes($post->post_title), '')); ?>" rel="bookmark">#</a> <?php edit_post_link('(edit)'); ?>		</li>		</ul>	<?php else: // If it's a regular post or a permalink page ?>	<div class="post" id="post-<?php the_ID(); ?>">		<h4><a href="<?php the_permalink() ?>" rel="bookmark" title="Permanent Link to <?php the_title(); ?>"><?php the_title(); ?></a></h4>		<div class="contentarea">			<p class="details"><span class="user"><?php the_author_posts_link() ?></span> <span class="date"><?php the_time('F jS, Y') ?></span> <?php edit_post_link('Edit'); ?></p>				<?php the_content('Continue Reading &raquo;'); ?>			<?php wp_link_pages(); ?>			<ul class="controls">				<li class="more"><?php the_category(' , ') ?></li>								<li class="comments"><?php comments_popup_link('Comments (0)', 'Comments (1)', 'Comments (%)'); ?></li>							</ul>		</div>	</div>				<?php endif; // end if in category ?>