MySQL Problem

0:00 [27.05.11 07:49:56] PHP-Error: Warning in :\Users\Administrator\Desktop\Admin Software\(Server 1) iSnipe S&D\classes\mysql.class.php:26 => mysql_connect(): Premature end of data (mysqlnd_wireprotocol.c:554) 
  	0:00 [27.05.11 07:49:56] PHP-Error: Warning in :\Users\Administrator\Desktop\Admin Software\(Server 1) iSnipe S&D\classes\mysql.class.php:26 => mysql_connect(): OK packet 1 bytes shorter than expected 
  	0:00 [27.05.11 07:49:56] PHP-Error: Warning in :\Users\Administrator\Desktop\Admin Software\(Server 1) iSnipe S&D\classes\mysql.class.php:26 => mysql_connect(): mysqlnd cannot connect to MySQL 4.1+ using the old insecure authentication. Please use an administration tool to reset your password with the command SET PASSWORD = PASSWORD('your_existing_password'). This will store a new, and more secure, hash value in mysql.user. If this user is used in other scripts executed by PHP 5.2 or earlier you might need to remove the old-passwords flag from your my.cnf file 
  	0:00 [27.05.11 07:49:56]  !! Error: Statistics: Couldn't connect to MySQL databas; Error 2000: mysqlnd cannot connect to MySQL 4.1+ using the old insecure authentication. Please use an administration tool to reset your password with the command SET PASSWORD = PASSWORD('your_existing_password'). This will store a new, and more secure, hash value in mysql.user. If this user is used in other scripts executed by PHP 5.2 or earlier you might need to remove the old-passwords flag from your my.cnf file