Warning: mysql_connect(): The server requested authentication method unknown to the client [mysql_old_password] in /home/hollys8/public_html/gallery/pp-inc.php on line 200

Warning: mysql_connect(): The server requested authentication method unknown to the client in /home/hollys8/public_html/gallery/pp-inc.php on line 200
I cannot connect to the PhotoPost database. [$php_errormsg]