Hi guys, I am new to Ubercart, while its a great application, I have been having some problems with some white screens of death. I have followed some of the suggestions on the previous replies but they have not worked for me. I am currently using the following:

Drupal 5.8
MySQL database 5.0.45
PHP 5.2.4
PHP register globals Off
Unicode library PHP Mbstring Extension
Web server Apache/2.0.54

and I have been getting the following message, just after I installed ubercart:

Warning: session_start() [function.session-start]: Cannot send session cache limiter - headers already sent (output started at C:\xampp\htdocs\drupal_58\index.php:7) in C:\xampp\htdocs\drupal_58\includes\bootstrap.inc on line 899

Warning: Cannot modify header information - headers already sent by (output started at C:\xampp\htdocs\drupal_58\index.php:7) in C:\xampp\htdocs\drupal_58\includes\bootstrap.inc on line 531

Warning: Cannot modify header information - headers already sent by (output started at C:\xampp\htdocs\drupal_58\index.php:7) in C:\xampp\htdocs\drupal_58\includes\bootstrap.inc on line 532

Warning: Cannot modify header information - headers already sent by (output started at C:\xampp\htdocs\drupal_58\index.php:7) in C:\xampp\htdocs\drupal_58\includes\bootstrap.inc on line 533

Warning: Cannot modify header information - headers already sent by (output started at C:\xampp\htdocs\drupal_58\index.php:7) in C:\xampp\htdocs\drupal_58\includes\bootstrap.inc on line 534