Bobans

yes, it works at least for me

WP 3.3.1
NGG 1.9.3

some file modification is necessary if you wish to use the NGG’s RSS feed

Had similar problem with my theme, took similar action to fix the calendar
and now it works

My (temporary) solution:
create folder /js/ in the wp-content/plugins/all-in-one-event-calendar/add/

download the jquery-tools-1.2.5.min.js file from here

place the file in the newly created /js/ folder

in wp-content/plugins/all-in-one-event-calendar/app/controller/class-ai1ec-events-controller.php on line 121

wp_enqueue_script( ‘jquery.tools-form’, ‘https://cdn.jquerytools.org/1.2.5/form/jquery.tools.min.js’, array( ‘jquery’ ), ‘1.2.5’ );

change to these
wp_enqueue_script( ‘jquery.tools-form’, ‘/js/jquery-tools-1.2.5.min.js’, array( ‘jquery’ ), ‘1.2.5’ );