[mysql_connect() error]

MySQL  4.1.20 essential
PHP  4.3.11
Im using apache 2.0.55 if that matters

[mysql_connect() error]

[quote]Warning: mysql_connect(): Client does not support authentication protocol requested by server. Consider upgrading MySQL client in ...... on line 6.[/quote]

Please help i cant figure this one out i tried upgarding mysql then i tried PHP the a new apache but i cant get it to work... Help please ???