Object reference not set to an instance of an object

I keep getting the following error when I access my Schedule.aspx page.

[NullReferenceException: Object reference not set to an instance of an object.]
 Sports.Games.ReadGame(Int32 GameID) in c:\Inetpub\wwwroot\app1\inc\components\games.cs:83
 UBM.Schedule.Page_Load(Object sender, EventArgs e) in c:\Inetpub\wwwroot\app1\inc\cb\schedule.cs:24
 System.Web.UI.Control.OnLoad(EventArgs e) +67
 System.Web.UI.Control.LoadRecursive() +35
 System.Web.UI.Page.ProcessRequestMain() +731

I'm using schedule.cs as my CodeBehind and it uses a class file called Games. I was able to compile both successfully. I have a DataList control called "dlstGameList" in my Schedule.aspx page. The rest of my code are as follows:

schedule.cs

using System;
using System.Web.UI;
using System.Web.UI.WebControls;
using Sports;
namespace UBM
{
 public class Schedule : Page{
 protected virtual void Page_Load(Object sender , EventArgs e) {
 DataList dlstGameList;
 Games objGame = new Games();
 objGame.ReadGame(1);
 dlstGameList = objGame.dlstGames;
 }
 }
}

games.cs

namespace Sports {
using System;
using System.Data.SqlClient;
using System.Web.UI.WebControls;
 public class Games {
 private SqlCommand cmdQuery;
 private string strQuery;
 private SqlConnection conDados;
 public DataList dlstGames;
 private SqlDataReader dtrGames;
 public Games(){
 }
 public void ReadGame(int GameID) {
 conDados = new SqlConnection( "Server=(local);USER ID=*****;Password=*****;database=*****" );
 conDados.Open();
 strQuery = "Select * From tbGames WHERE ID = " + GameID;
 cmdQuery = new SqlCommand(strQuery, conDados );
 dtrGames = cmdQuery.ExecuteReader();
 conDados.Close();
 dlstGames.DataSource = dtrGames;
 dlstGames.DataBind();
 }
 }
}

<b>Is there anything I'm missing here? I read somewhere that it is a bug and you need to register a DLL in the gacutil but I can't find that file in my .Net directory.

Thanks.Check to make sure dtrGames isn't null, maybe? Also, make sure GameID has a value.

Brian