I only see a blank page when I try to run Contao.
First of all, add the following line to your local configuration file system/config/localconfig.php:
$GLOBALS['TL_CONFIG']['displayErrors'] = true;
If there still is no error message, you are probably using a PHP version prior to 5.2 or. If you have activated the Safe Mode Hack, make sure that your server supports file operations via FTP (compile PHP with --enable-ftp).
Last update on 07.06.2010 by Leo Feyer.