I'm afraid that's something your administrator will have to change, unless you're running your site on Apache (through a module, not CGI), in which case you may be able to add the following lines to your .htaccess file:
Code:
php_flag display_errors on
php_flag display_startup_errors on
php_value error_reporting 2047
After that the page shouldn't be as much white as white with error text on it :-P