filter on field_date greater equal to NOW breaks view.

Using Views 5.x-1.6, Content Construction Kit (CCK) 5.x-1.9, and Drupal 5.10

When I upgrade my sites to Date 5.x-2.3 from 5.x-1.latest, I can no longer filter a View on Date(field_date) >= NOW, if I add this filter, no events show up at all in my view. I've even tried deleting my view, and recreating it from scratch. I've tried disabling and uninstalling Calendar and Date (and all their buddies), then wiping their dirs, untaring fresh, reenabling, rebuilding my data... STILL broken. Calendar is working OK but I can't filter my "Events" view for >= now.

This "events" view w/o a filter on now works fine... (generated with views -> export...)

  $view = new stdClass();
  $view->name = 'events';
  $view->description = 'Upcoming Events';
  $view->access = array (
);
  $view->view_args_php = '';
  $view->page = TRUE;
  $view->page_title = 'Upcoming Events';
  $view->page_header = '<p>Upcoming Troop Events. To add a new event, use Create Content -> <a href="/node/add/event">Event</a></p>';
  $view->page_header_format = '1';
  $view->page_footer = '';
  $view->page_footer_format = '1';
  $view->page_empty = '';
  $view->page_empty_format = '1';
  $view->page_type = 'table';
  $view->url = 'events';
  $view->use_pager = TRUE;
  $view->nodes_per_page = '25';
  $view->sort = array (
    array (
      'tablename' => 'node_data_field_date',
      'field' => 'field_date_value',
      'sortorder' => 'ASC',
      'options' => '',
    ),
  );
  $view->argument = array (
  );
  $view->field = array (
    array (
      'tablename' => 'node',
      'field' => 'title',
      'label' => '',
      'handler' => 'views_handler_field_nodelink',
      'options' => 'link',
    ),
    array (
      'tablename' => 'node_data_field_date',
      'field' => 'field_date_value',
      'label' => '',
      'handler' => 'content_views_field_handler_ungroup',
      'options' => 'default',
    ),
    array (
      'tablename' => 'node',
      'field' => 'body',
      'label' => '',
      'handler' => 'views_handler_field_teaser',
    ),
  );
  $view->filter = array (
    array (
      'tablename' => 'node',
      'field' => 'type',
      'operator' => 'OR',
      'options' => '',
      'value' => array (
  0 => 'event',
),
    ),
  );
  $view->exposed_filter = array (
  );
  $view->requires = array(node_data_field_date, node);
  $views[$view->name] = $view;

This "events" view with the additional filter comes up empty every time.

  $view = new stdClass();
  $view->name = 'events';
  $view->description = 'Upcoming Events';
  $view->access = array (
);
  $view->view_args_php = '';
  $view->page = TRUE;
  $view->page_title = 'Upcoming Events';
  $view->page_header = '<p>Upcoming Troop Events. To add a new event, use Create Content -> <a href="/node/add/event">Event</a></p>';
  $view->page_header_format = '1';
  $view->page_footer = '';
  $view->page_footer_format = '1';
  $view->page_empty = '';
  $view->page_empty_format = '1';
  $view->page_type = 'table';
  $view->url = 'events';
  $view->use_pager = TRUE;
  $view->nodes_per_page = '25';
  $view->sort = array (
    array (
      'tablename' => 'node_data_field_date',
      'field' => 'field_date_value',
      'sortorder' => 'ASC',
      'options' => '',
    ),
  );
  $view->argument = array (
  );
  $view->field = array (
    array (
      'tablename' => 'node',
      'field' => 'title',
      'label' => '',
      'handler' => 'views_handler_field_nodelink',
      'options' => 'link',
    ),
    array (
      'tablename' => 'node_data_field_date',
      'field' => 'field_date_value',
      'label' => '',
      'handler' => 'content_views_field_handler_ungroup',
      'options' => 'default',
    ),
    array (
      'tablename' => 'node',
      'field' => 'body',
      'label' => '',
      'handler' => 'views_handler_field_teaser',
    ),
  );
  $view->filter = array (
    array (
      'tablename' => 'node',
      'field' => 'type',
      'operator' => 'OR',
      'options' => '',
      'value' => array (
  0 => 'event',
),
    ),
    array (
      'tablename' => 'node_data_field_date',
      'field' => 'field_date_value_default',
      'operator' => '>=',
      'options' => 'now',
      'value' => '',
    ),
  );
  $view->exposed_filter = array (
  );
  $view->requires = array(node_data_field_date, node);
  $views[$view->name] = $view;