Aha! I’ve worked out what causes it – wp-typography. Not sure why, though.
It’s very subtle… to be honest, maybe that’s how the entire internet looked and I’m only noticing it now that I’m designing. If you look at the speech marks that open speech (in my image, at least), you’ll see the mark is further left than the rest of the text, like so:
..Text, text text: text text.
.”A speech!” said the text.
..Yes text text.
Does it not appear in your browser?
If you go to sidebar.php, it should be hiding there. I think the one you want to get rid of is
<?php wp_list_bookmarks('title_before=<h3>&title_after=</h3>&show_images=1') ?>
But I’m not sure if it’ll mangle the footer if you delete it. Give it a go!