Featured age for custom post types?

Hi,

I’m having trouble adding a featured image to a custom post type.

The codex tells me to add (with ‘song’ being my custom type):

add_theme_support( ‘post-thumbnails’, array( ‘song’ ) );

to functions php, and

‘supports’ => array(‘thumbnail’)

to my register_post_type function.

Unfortunately this doesn’t seem to solve the issue.

Do you have any ideas of how to solve this?

Thanks, and congratulations of a great theme!