Capability type and capabilities

Hi everybody!

I’m playing with my custom post types and got in trouble with it’s capabilities.

I created custom post type ‘hints’ which must have the same capabilities as post except that subscribers should also be able to add new content.

So I created my custom post type with capability type ‘post’ and two new capabilities:

'capability_type' => 'post',
'capabilities' => array(
			'delete_posts' => 'delete_hints',
			'edit_posts' => 'edit_hints',
			);

And later assigned those new capabilities to subscriber and admin:

function add_ego_caps() {
$role = get_role( 'subscriber' );
$role->add_cap( 'edit_hints' );
$role->add_cap( 'delete_hints' );

$role2 = get_role( 'administrator' );
$role2->add_cap( 'delete_hints' );
$role2->add_cap( 'edit_hints' );

}

But noone can add-edit-delete hints. Both user-types can get to the editor write text for their new hint but clicking the button “publish” takes to page wich says: “You have no right to change this post”

Also are missing admins links to edit or delete posts.

Any ideas? Could this be bug?