[Plugin: NextGEN Gallery] NexGen Gallery initial display is not good

When you go to the front page, the Gallery is displayed in vertical mode with large images for a moment, then settles down to the horizontal show. It is implemented with this code:

function marquee() {
  if (is_front_page()) {
    echo do_shortcode('[galleryview id=12]');
  }
}
add_action('thesis_hook_content_box_top','marquee');

You can see it happen at

How can I get this to behave properly?

http://wordpress.org/extend/plugins/nextgen-gallery/