1) OS your WP 2.5 install is on
==>Debian – latest
2) Version and type of webserver
==>apache 2.x
3) Version of php
==>5.2.0
4) Do you have an .htaccess file at wp-admin/.htaccess
==>no
5) Do you have .htaccess elsewhere
==>yes /var/www-ssl/wordpress/.htaccess
6) Are you password protecting the entire wp-admin directory, or does your host or cpanel have this turned on?
==>no
any idea ?