CPT custom columns also appear in the custom taxonomy screen?

Hi, guys – I’ve registered custom columns for my custom post type, but the same columns are replacing the columns in my custom taxonomy screen. How can I specify that I want my custom columns to appear ONLY on the edit.php page and not the edit-tags.php page?

function add_new_contact_columns($contact_columns) {
		$new_columns['cb'] = '<input type="checkbox" />';

		$new_columns['image'] = _x('', 'column name');
		$new_columns['title'] = _x('Contact Name', 'column name');
		$new_columns['recrm_firstname'] = __('First Name');
		$new_columns['primary_phone'] = __('Primary Phone');
 		$new_columns['e-mail'] = __('E-Mail');
 		$new_columns['priority'] = __('Priority');
 		$new_columns['contacttype'] = __('Type');
		$new_columns['author'] = __('Assigned To');
		return $new_columns;
	}

add_action('manage_contact_posts_custom_column', 'manage_contact_columns', 10, 2);

// Gets the meta data for each column type and populates the actual data
function manage_contact_columns($column_name, $id) {
		global $post;
		switch ($column_name) {
*a bunch of switches, removed for forum readabililty*
} // end switch
	}