[!--fonto:Arial--][span style=\"font-family:Arial\"][!--/fonto--]G'day, I'm running Win XP (SP2) & PHP Version 5.1.2 I've done some extensive searching on the net, this board and others but can't find what the problem is. It must be something really simple (I hope!). I downloaded a newsbox script from [a href=\"http://www.squidfingers.com\" target=\"_blank\"]squidfingers.com[/a], installed it on the root directory for a website I'm designing on my own machine but I get the following error whilst running the install.php script:[!--quoteo--][div class=\'quotetop\']QUOTE[/div][div class=\'quotemain\'][!--quotec--]Notice: Undefined index: SESSION_USER in C:\Documents and Settings\Pinky\My Documents\TipTop3.0\admin\install.php on line 7 Warning: Cannot modify header information - headers already sent by (output started at C:\Documents and Settings\Pinky\My Documents\TipTop3.0\admin\install.php:7) in C:\Documents and Settings\Pinky\My Documents\TipTop3.0\admin\install.php on line 8[/quote] The code is refers to from the install.php script is [code]require_once ("../includes/configure.php"); session_start (); if ($_SESSION["SESSION_USER"] != $config["admin_username"]) { header ("Location: index.php"); exit; } require_once ("../includes/admin.php"); require_once ("../includes/connect.php");[/code]but there is also some script on the admin.php file where it authenticates the user, that code is [code]// ---------------------------------------------------------------------- // Authenticate User function admin_login () { global $config; session_start (); if (empty ($_SESSION["SESSION_USER"])) { $username = $_REQUEST["username"]; $password = $_REQUEST["password"]; if ($username != $config["admin_username"] || $password != $config["admin_password"]) { print_admin_header (); print_admin_login ((empty ($username) && empty ($password)) ? "Please Login." : "Incorrect Username or Password."); print_admin_footer (); exit; } else { $_SESSION["SESSION_USER"] = $config["admin_username"]; } } }[/code] Someone on another website where I went to for advice, suggested it could be because my register_globals was set to ON in the ini.php file but that's not the case as it's defaulted to OFF. I'm wondering whether it could just be a setting on my localhost. Any help much appreciated. Thanks, pinky[!--fontc--][/span][!--/fontc--]