Monodevelop +mysql Connection

Dears!!

i'm have a problem, iím user monodevelop + mysql (althought bytefxdata), but no connection ...

using System;
using System.Text;
using System.Collections;
using System.ComponentModel;
using System.Drawing;
using System.Windows.Forms;
using System.IO;
using System.Data;
using ByteFX.Data.MySqlClient;
using ByteFX.Data.Common;
using Npgsql;
using Mono.Data;
using Gtk;

public partial class MainWindow: Gtk.Window
{
private string conexao;
private ByteFX.Data.MySqlClient.MySqlConnection link_conexao;

void carrega_dados()
{
conexao="Database=db;Server=127.0.0.1;User Id=root;Password=123";
//conexao = "Database=db;Data Source=localhost;User Id=root;Password=123";
try
{
link_conexao=new ByteFX.Data.MySqlClient.MySqlConnection(conexao);
//MessageBox.Show("conectou");
}
catch(Exception ex)// (MySqlConnection error)
{
MessageBox.Show("erro no banco");
}
}

void consulta_banco()
{
//MessageBox.Show("oi");
string pega_senha = "SELECT senha FROM tbadm_agenda";
link_conexao.Open();

ByteFX.Data.MySqlClient.MySqlDataAdapter adap_senha= new MySqlDataAdapter(pega_senha,link_conexao);
adap_senha.SelectCommand.CommandText=pega_senha;
ByteFX.Data.MySqlClient.MySqlCommandBuilder const_senha= new ByteFX.Data.MySqlClient.MySqlCommandBuilder(adap_s enha);
DataSet ds_senha=new DataSet();
adap_senha.Fill(ds_senha,"senha");
string senha="";
//MessageBox.Show("ora ora9");
senha=Convert.ToString(ds_senha.Tables["senha"].Rows[0]["senha"]);
//MessageBox.Show("ora ora10");
link_conexao.Close();
//MessageBox.Show("ora ora11");
MessageBox.Show(senha);

//link_conexao.Close();
}
public MainWindow (): base (Gtk.WindowType.Toplevel)
{
Build ();
carrega_dados();
}

protected virtual void OnButton1Clicked (object sender, System.EventArgs e)
{
MessageBox.Show("janela","oi");
consulta_banco();
}

//protected void OnDeleteEvent (object sender, DeleteEventArgs a)
//{
//Application.Quit ();
//a.RetVal = true;
//}

}

************************************************** ************************************************** ****
now the error message, later compiled
************************************************** ************************************************** ****
i'm have references exists...in the windows too

.................................................. .................
Now the error
.................................................. ...............
quipus@linux-1cnf:~/Desktop/monitora/m1/m1/bin/Debug> mono m1.exe
Exception in Gtk# callback delegate
Note: Applications can use GLib.ExceptionManager.UnhandledException to handle the exception.
ByteFX.Data.MySqlClient.MySqlException: Client does not support authentication p rotocol requested by server; consider upgrading MySQL client
at ByteFX.Data.MySqlClient.Driver.ReadPacket () [0x00000]
at ByteFX.Data.MySqlClient.Driver.Authenticate (System.String userid, System.S tring password, Boolean UseCompression) [0x00000]
at ByteFX.Data.MySqlClient.Driver.Open (ByteFX.Data.MySqlClient.MySqlConnectio nString settings) [0x00000]
at ByteFX.Data.MySqlClient.MySqlInternalConnection.Op en () [0x00000]
at ByteFX.Data.MySqlClient.MySqlPool.CreateNewPooledC onnection () [0x00000]
at ByteFX.Data.MySqlClient.MySqlPool.GetPooledConnect ion () [0x00000]
at ByteFX.Data.MySqlClient.MySqlPool.GetConnection () [0x00000]
at ByteFX.Data.MySqlClient.MySqlPoolManager.GetConnec tion (ByteFX.Data.MySqlCl ient.MySqlConnectionString settings) [0x00000]
at ByteFX.Data.MySqlClient.MySqlConnection.Open () [0x00000]
at GLib.ExceptionManager.RaiseUnhandledException(Syst em.Exception e, Boolean is_terminal)
at GLib.Signal.voidObjectCallback(IntPtr handle, IntPtr data)
at GLib.Signal.voidObjectCallback(IntPtr , IntPtr )
at Gtk.Application.gtk_main()
at Gtk.Application.gtk_main()
at Gtk.Application.Run()
at m1.MainClass.Main(System.String[] args)
quipus@linux-1cnf:~/Desktop/monitora/m1/m1/bin/Debug>


HELP ME PLEASE!!!
my e-mail is : edgardx3w@gmail.com
and my msn: edgard_t@hotmail.com

thanks