HTTP Authentication with PHP

Hello, I hoping someone can help me out with this. Here is the web server config. Sun Solaris Netscape Web Server PHP installed as module I'm getting the following error. trying to GET /joey/auth.php3, cgieng_scan_headers reports: the CGI program /usr/local/bin/php did not produce a valid header (name without value: got line "http/1.0 401 unauthorized") Here is my code. <?php // File Name: auth01.php // Check to see if $PHP_AUTH_USER already contains info if (!isset($PHP_AUTH_USER)) { // If empty, send header causing dialog box to appear Header("WWW-Authenticate: Basic realm=\"My Private Stuff\""); Header("HTTP/1.0 401 Unauthorized"); echo 'Authorization Required.'; exit; } // If not empty, display values for variables else { echo " <P>You have entered this username: $PHP_AUTH_USER<br> You have entered this password: $PHP_AUTH_PW<br> The authorization type is: $PHP_AUTH_TYPE</p> "; } ?> This is just a test to see how well it works but I can't get it to work. According to all documentation this should work fine. I tried with IE and Netscape ( different versions) and still nothing. I hope someone can shed some light on this problem. Thanks Joey ( Newbie)