CIVI Dashboard display settings broken in Wordpress install
I would double check the define( 'CIVICRM_UF_BASEURL'      , 'http://example.com/' ); line and make sure that the url exactly matches the Site Address (URL) in http://yoursite.com//wp-admin/options-general.php

I've had issues where one is http://www.example.com  and the other is http://example.com

Next check the CiviCRM resource URL:  http://example.com/wp-admin/admin.php?page=CiviCRM&amp;q=civicrm/admin/setting/url&amp;reset=1 The CiviCRM Resource URL parameter should point to http://example.com/wp-content/plugins/civicrm/civicrm/

Lastly, I'd fire up Firebug or chrome inspector and see if there are any console errors.  I'd want to know which css file is loading for civicrm.  For me it is /wp-content/plugins/civicrm/civicrm/css/civicrm.css