这是三种登陆方式所提示的错误，总而言之就是密码错误，可是我用这个密码在MySQLDataWizard和cmd都可以正常登陆。

Apache 2.0.51
php 3.4.8
mysql 4.1

config:
欢迎使用 phpMyAdmin 2.6.1-pl3

phpMyAdmin 试图连接到 MySQL 服务器，但服务器拒绝连接。您应该检查 config.inc.php 中的主机、用户名和密码，并且确定这些信息与 MySQL 服务器的管理员所给出的信息一致。

错误
MySQL 返回：

#1251 - Client does not support authentication protocol requested by server; consider upgrading MySQL client

http:
欢迎使用 phpMyAdmin 2.6.1-pl3


用户名/密码错误，访问被拒绝。

cookie:
错误
#1251 - Client does not support authentication protocol requested by server; consider upgrading MySQL client

以下是config.inc.php的设置：
$cfg['Servers'][$i]['host'] = 'localhost'; // MySQL hostname or IP address
$cfg['Servers'][$i]['port'] = '3306'; // MySQL port - leave blank for default port
$cfg['Servers'][$i]['socket'] = ''; // Path to the socket - leave blank for default socket
$cfg['Servers'][$i]['connect_type'] = 'tcp'; // How to connect to MySQL server ('tcp' or 'socket')
$cfg['Servers'][$i]['extension'] = 'mysql'; // The php MySQL extension to use ('mysql' or 'mysqli')
$cfg['Servers'][$i]['compress'] = TRUE; // Use compressed protocol for the MySQL connection
// (requires PHP >= 4.3.0)
$cfg['Servers'][$i]['controluser'] = 'root'; // MySQL control user settings
// (this user must have read-only
$cfg['Servers'][$i]['controlpass'] = '********'; // access to the "mysql/user"
// and "mysql/db" tables).
// The controluser is also
// used for all relational
// features (pmadb)
$cfg['Servers'][$i]['auth_type'] = 'cookie'; // Authentication method (config, http or cookie based)?
$cfg['Servers'][$i]['user'] = 'root'; // MySQL user
$cfg['Servers'][$i]['password'] = '********'; // MySQL password (only needed
// with 'config' auth_type)