Find and remove just this from the header.php file
<?php _e( ‘Home’, ‘titan’ ); ?>
I got it to work in Twenty Ten by editing the header.php file
look for the section that says Houston we have a new image and change it to this
// Houston, we have a new header image!
echo get_the_post_thumbnail( $post->ID, ‘post-thumbnail’ );
else : ?>
<?php if(function_exists(‘show_media_header’)){ show_media_header(); } ?>
<?php endif; ?>