Hey Jano…
That can be found in the pointer.php file right at the top of the code. It looks like this:
// create an array if pointers for each page
$this->pointers = array(
'nggallery-add-gallery' => array(
'id' => 'image_resize_pointer',
'content' => __('<h3>Client side resize</h3><p>You can now resize the images before you start with the upload.</p>', 'nggallery'),
'posititon'=> 'top'
)
);
$page = ( isset($_GET['page']) ) ? $_GET['page'] : '';
$this->settings = ( isset( $this->pointers[$page] ) ) ? $this->pointers[$page] : array();
add_action( 'admin_enqueue_scripts', array( &$this, 'enqueue' ) );
}
I have not seen the pop up myself and I do not know what would happen if you commented out the lines of code. I would make a backup of the file, place // in front of each line and save it. I would not delete the code straight out and try it though.
Once you do that try the “add new gallery” area and see if it still pops up or if you get any errors.