Update to 6.6 messed up page displays

I recently updated from 6.4 to 6.6, and since then my two page displays have become screwed up and I can't figure out how to fix them. The site is a three column site, and the right sidebar gets put in strange places (either below the page content, as in the attached screenshots, or alongside it but too far down and waaaay too wide).

The content/wrapper background, which is just a solid color, also cuts out in the middle. It cuts out exactly at the lowest viewable place in the browser. When you scroll down the page, at that point the wrapper background isn't there and the whole row has just the page background. Attached are screen shots.

Here is the code for one of the views, News.

$view = new view;
$view->name = 'News';
$view->description = '';
$view->tag = '';
$view->view_php = '';
$view->base_table = 'node';
$view->is_cacheable = FALSE;
$view->api_version = 2;
$view->disabled = FALSE; /* Edit this to true to make a default view disabled initially */
$handler = $view->new_display('default', 'UpcomingWorkshops', 'default');
$handler->override_option('fields', array(
  'title' => array(
    'label' => '',
    'link_to_node' => 1,
    'exclude' => 1,
    'id' => 'title',
    'table' => 'node',
    'field' => 'title',
    'relationship' => 'none',
  ),
  'created' => array(
    'label' => '',
    'date_format' => 'custom',
    'custom_date_format' => 'l, M d',
    'exclude' => 0,
    'id' => 'created',
    'table' => 'node',
    'field' => 'created',
    'override' => array(
      'button' => 'Override',
    ),
    'relationship' => 'none',
  ),
));
$handler->override_option('sorts', array(
  'created' => array(
    'order' => 'ASC',
    'granularity' => 'minute',
    'id' => 'created',
    'table' => 'node',
    'field' => 'created',
    'relationship' => 'none',
  ),
));
$handler->override_option('arguments', array(
  'title' => array(
    'id' => 'title',
    'table' => 'node',
    'field' => 'title',
  ),
));
$handler->override_option('filters', array(
  'type' => array(
    'operator' => 'in',
    'value' => array(
      'story' => 'story',
    ),
    'group' => '0',
    'exposed' => FALSE,
    'expose' => array(
      'operator' => FALSE,
      'label' => '',
    ),
    'id' => 'type',
    'table' => 'node',
    'field' => 'type',
    'relationship' => 'none',
    'override' => array(
      'button' => 'Override',
    ),
  ),
  'promote' => array(
    'operator' => '=',
    'value' => 1,
    'group' => '0',
    'exposed' => FALSE,
    'expose' => array(
      'operator' => FALSE,
      'label' => '',
    ),
    'id' => 'promote',
    'table' => 'node',
    'field' => 'promote',
    'relationship' => 'none',
  ),
));
$handler->override_option('access', array(
  'type' => 'none',
));
$handler->override_option('title', 'Latest News');
$handler->override_option('items_per_page', 2);
$handler->override_option('use_more', 1);
$handler->override_option('style_options', array(
  'grouping' => 'title',
));
$handler->override_option('row_options', array(
  'inline' => array(),
  'separator' => '',
));
$handler = $view->new_display('page', 'Latest News', 'page_1');
$handler->override_option('items_per_page', 0);
$handler->override_option('row_plugin', 'node');
$handler->override_option('row_options', array(
  'teaser' => 0,
  'links' => 1,
  'comments' => 0,
));
$handler->override_option('path', 'news');
$handler->override_option('menu', array(
  'type' => 'normal',
  'title' => 'Latest News',
  'weight' => '0',
  'name' => 'navigation',
));
$handler->override_option('tab_options', array(
  'type' => 'none',
  'title' => '',
  'weight' => 0,
));
$handler = $view->new_display('block', 'Block', 'block_1');
$handler->override_option('fields', array(
  'title' => array(
    'label' => '',
    'link_to_node' => 1,
    'exclude' => 1,
    'id' => 'title',
    'table' => 'node',
    'field' => 'title',
    'relationship' => 'none',
  ),
  'created' => array(
    'label' => '',
    'date_format' => 'custom',
    'custom_date_format' => 'l F d',
    'exclude' => 0,
    'id' => 'created',
    'table' => 'node',
    'field' => 'created',
    'override' => array(
      'button' => 'Use default',
    ),
    'relationship' => 'none',
  ),
));
$handler->override_option('block_description', '');
$handler->override_option('block_caching', -1);