ErrorDocument and authentication check

Hi: Synopsis: Authentication (require user') not checked when ErrorDocument' points to a PHP page. [Apache/1.3.9 + PHP/4.0B2, Solaris 2.5.1] Description: One of ErrorDocument directives in httpd.conf is set to point to a PHP page somewhere. The server contains a protected <Directory> elsewhere. (The two are not related at all). When I try to access the protected area, I'm not prompted for username/password at all but the server goes "unauthorised access" immediately. Now when I use a plain HTML page instead of the PHP one in ErrorDocument directive, or when I comment the ErrorDocument directive out, or when I use PHP3 instead of PHP4, everything works fine. Has anybody observed such a behaviour? -TS