register_globals is enabled. Drupal requires this configuration directive to be disabled. Your site may not be secure when register_globals is enabled. The PHP manual has instructions for how to change configuration settings. (Currently using PHP register globals Enabled ('1'))
I have already set register_globals Off indeed.
I configured it in php.ini
This could be the problem php4, so you may try to upgrade to php 5.
You can ask web hosting company. Or if you use cpanel,
You just need to upgrade it in cpanel.