XAMPP Passwords headache

[Domino2]

I have installed XAMPP. I want to start using MySql and PhpMyAdmin, but I keep bouncing between two states.

#1045 - Access denied for user 'root'@'localhost' (using password: YES)

#1045 - Access denied for user 'root'@'localhost' (using password: NO)

I have been into my php configuration file (config.inc) and have these lines.

/* Authentication type and info */

$cfg['Servers'][$i]['auth_type'] = 'cookie';
$cfg['Servers'][$i]['user'] = 'root';
$cfg['Servers'][$i]['password'] = 'mynewpassword';
$cfg['Servers'][$i]['AllowNoPasswordRoot'] = false;

I am sorry if I get shouted at for not putting this on the php forum, but I just want to get to MySql.

Can anyone please help me get out of this mess, thanks