<?php wp_head(); ?> line in it’s header.php (usually located in wp-content/themes/themename/header.php) and also a
<?php wp_footer(); ?> line in it’s footer.php (usually located in wp-content/themes/themename/footer.php.) These two problems are by far the most common. Any bugs you find can be submitted to email@example.com or submitted as a comment here. Below are links to the latest zip file and latest tar.gz as well as GPG signatures of the files.