Problemer med Insert command

Hej,
jeg skal bare skrive i en database, men det er åbenbart ikke sådan lige at gøre, min kode ser ud som følger:

namespace tune {
    using System;
    using System.Web.UI;
    using System.Data;
    using System.Data.OleDb;
    using System.Web.UI.WebControls;
    /// <summary>
    /// Summary description for indtast_resultat.
    /// </summary>
    public class indtast_resultat : Page {

    public DataGrid dg1, dg2, dgUpd;
    public Label L1;


    void Page_Load(object sender, EventArgs e)
    {
    string strConnection, strSQL;
    DataSet objDataSet = new DataSet();
    OleDbConnection objConnection = null;
    OleDbDataAdapter objAdapter = null;

    strConnection = "Provider=Microsoft.Jet.OleDb.4.0;";
    strConnection += @"Data Source=/inetpub/wwwroot/db/bkasse.mdb";
    strSQL = "SELECT * FROM login";

    objConnection = new OleDbConnection(strConnection);
    objAdapter = new OleDbDataAdapter(strSQL, objConnection);

    objAdapter.Fill(objDataSet, "login");

    dg1.DataSource = objDataSet.Tables["login"].DefaultView;
    dg1.DataBind();

    DataTable objTable = null;
    DataRow objnewRow = null;
    objTable = objDataSet.Tables["login"];
    objnewRow = objTable.NewRow();
    objnewRow["brugernavn"]= "osupohupt";
    objnewRow["password"]= "dilliopnoer";
    objnewRow["nummer"]= "22";
    //objnewRow["resultat_2"]= "11";
    //objnewRow["id_kampe"]="erer";
    objTable.Rows.Add(objnewRow);

    dg2.DataSource = objTable.DefaultView;
    dg2.DataBind();

    OleDbCommandBuilder objBuilder = null;
    objBuilder = new OleDbCommandBuilder(objAdapter);

    //objAdapter.UpdateCommand = objBuilder.GetUpdateCommand();
    //objAdapter.InsertCommand.CommandText = "INSERT INTO login(brugernavn, password, nummer) VALUES(sgfg,wrfgwrfg,wrfwrf)";
    objAdapter.InsertCommand = objBuilder.GetInsertCommand();
    //objAdapter.DeleteCommand = objBuilder.GetDeleteCommand();
    L1.Text = objAdapter.InsertCommand.CommandText;

    objAdapter.Update(objDataSet, "login");

    strSQL = "SELECT * FROM login";
    objConnection.Open();
    OleDbCommand objCmd = new OleDbCommand(strSQL, objConnection);
    dgUpd.DataSource = objCmd.ExecuteReader(CommandBehavior.CloseConnection);
    dgUpd.DataBind();
    }

        public indtast_resultat() {
        }
    }
}

Men jer får følgende fejl:

[OleDbException (0x80040e14): Der er en syntaksfejl i INSERT INTO-sætningen.]
  System.Data.Common.DbDataAdapter.Update(DataRow[] dataRows, DataTableMapping tableMapping) +1662
  System.Data.Common.DbDataAdapter.Update(DataSet dataSet, String srcTable) +152
  tune.indtast_resultat.Page_Load(Object sender, EventArgs e) +479
  System.Web.UI.Control.OnLoad(EventArgs e) +67
  System.Web.UI.Control.LoadRecursive() +35
  System.Web.UI.Page.ProcessRequestMain() +731