Thought I would try the upgrade to 2.8.4 but it went pear shaped, a blank page with the message; under maintainance appeared.. I deleted that file from the web server.
Now theres a fatal error message when trying to log in the backend or frontend;
Fatal error: Class 'WP_Widget' not found in E:\domains\l\londonbicyclevaletparking.co.uk\user\htdocs\wp-includes\default-widgets.php on line 15
Thanks in advance