http://wordpress.org/extend/plugins/pixopoint-menu/installation/
"Activate the plugin through the 'Plugins' menu in WordPress
3a. Either: Add <?php wp_page_menu();} ?> to your theme wherever you want the menu to appear (usually your header.php file)."
The code is incorrect. It should read <?php wp_page_menu(); ?> - there is an added } for some reason.