Please help

I'm using phptriad. My problem is, when i start apache and mysqld-nt, and i try to open the "http://localhost/phpmyadmin" page, the prompts below appear:

Welcome to phpMyAdmin 2.2.3
Error
MySQL said:
Access denied for user: 'root@localhost' (using password: No)

I checked in the my.ini.setup, the username and password that i saved are as below:

Username: root
Password: user

In my dbase.php page, i wrote the same username and password to connect to my database. And the code is correct(as said by most of my friends).

Can anyone please help me to resolve this? Thanks a lot