Broken CRM and tracker urls

[Zebedee2010]

It is my first posting - sugarcrm has worked well for 10 months.

Sugar Version 5.5.2
Sugar Edition Sugar Community
Category Campaigns and Log-In
Operating System Windows XP
PHP Version 5.2.9
Database MySQL 5.0.51a
Web Server Apache 2.0

I have been trying to configure a campaign today - almost works - just an issue with tracker urls. The trackers was set http://www.mydomain.com but was showing as http://localhost.com/...... in the resultant delivered emails.

Trying to find where this is being set - I found site_url in the config.php in my sugarsrm directory which was set to 'http://localhost/tscrm' - tscrm is the folder containing my sugarcrm.

I changed this to 'http://www.mydomain.com/tscrm' rebooted and then got the following messages on trying to relaunch sugarcrm

Warning: session_start() [function.session-start]: Cannot send session cookie - headers already sent by (output started at C:\xampp\htdocs\tscrm\config.php:1) in C:\xampp\htdocs\tscrm\include\MVC\SugarApplication .php on line 417

Warning: session_start() [function.session-start]: Cannot send session cache limiter - headers already sent (output started at C:\xampp\htdocs\tscrm\config.php:1) in C:\xampp\htdocs\tscrm\include\MVC\SugarApplication .php on line 417

Warning: Cannot modify header information - headers already sent by (output started at C:\xampp\htdocs\tscrm\config.php:1) in C:\xampp\htdocs\tscrm\include\utils.php on line 2249

Warning: Cannot modify header information - headers already sent by (output started at C:\xampp\htdocs\tscrm\config.php:1) in C:\xampp\htdocs\tscrm\include\MVC\SugarApplication .php on line 120

I have returned the value of site_url back to its original value - and rebooted the server.

I get the same messages.

Any clues on how I can fix both these issues?

Thanks

[Zebedee2010]

Fixed the crm access.

[Zebedee2010]

SORTED - I have rebuilt it and sorted the tracker url.