关于Discuz!EXP 2.0.1 Build 20060503

今天下了Discuz!EXP 2.0.1 Build 20060503，然后安装成功，但运行时显示MySQL错误！

Discuz! info: Can not connect to MySQL server

Time: 2006-5-31 4:25am
Script: /index.php

Error: Access denied for user 'root'@'localhost' (using password: YES)
数据库帐户密码不对，请联系空间商

An error report has been dispatched to our administrator.

为什么连不上 MySQL server？用户密码都设置对啊！