I have migrated ssp to a new server and am getting a blank screen for the login screen. I have used the mysql_test.php file and it says that I have connected to the database. I am using the debug and the error is:

Warning (2): Cannot modify header information - headers already sent by (output started at /usr/local/pem/vhosts/172901/webspace/httpdocs/dermotculhane.ie/ssp_director/config/user_setup.php:68) [APP/cake/libs/controller/controller.php, line 644]

Code | Context

header - [internal], line ??
Controller::header() - APP/cake/libs/controller/controller.php, line 644
Controller::redirect() - APP/cake/libs/controller/controller.php, line 625
AppController::checkSession() - APP/app_controller.php, line 138
SiteController::index() - APP/controllers/site_controller.php, line 16
Object::dispatchMethod() - APP/cake/libs/object.php, line 116
Dispatcher::_invoke() - APP/cake/dispatcher.php, line 227
Dispatcher::dispatch() - APP/cake/dispatcher.php, line 194
require - APP/webroot/index.php, line 93
[main] - ROOT/index.php, line 61