Login Page troubles

Hi, I'm a beginner in regards to ASP.net programming, and I am trying to create an online database application. I have so far been able to create a register page, for those users not yet registered. This takes data from a form and inserts it into an access database.\

I am now trying to create a login page, and am almost there, however, a strange error is occuring. When I click the Login button it comes back with this error:

Oops. The error: No value given for one or more required parameters.
SELECT strUserID, strPassword FROM Users WHERE strUserID='amamo'

my database is named SystemsLog.mdb the table is named Users, it is saved in the directory shown, and the UserID amamo is in there...so I don't know why its falling off at the UserID check...I even put [] around Users, but that didnt do anything..its probably something staring me in the face

<%@dotnet.itags.org. Page Language="C#" %>
<%@dotnet.itags.org. Register TagPrefix="MySite" TagName="Login" src="http://pics.10026.com/?src=login.ascx" %>
<%@dotnet.itags.org. import Namespace="System.Data" %>
<%@dotnet.itags.org. import Namespace="System.Data.OleDb" %>
<%@dotnet.itags.org. import Namespace="System.Web.Security" %>
<script runat="server"
 private void Page_Load(Object sender, EventArgs E) {
 if ((Page.IsPostBack)) {
 string strDSN = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=H:\\Support Log Project\\c#login\\test\\SystemsLog.mdb";
 string strSQL = "SELECT strUserID, strPassword FROM Users WHERE strUserID='" + MyLogin.UserID + "'";
 OleDbConnection myConn = new OleDbConnection(strDSN);
 OleDbCommand myCmd = new OleDbCommand(strSQL, myConn);
 OleDbDataReader dr = null;
 try {
 myConn.Open();
 dr = myCmd.ExecuteReader();
 if(dr.Read()) {
 if(dr.GetString(1).Trim() == MyLogin.Password.Trim()) {
 FormsAuthentication.RedirectFromLoginPage(MyLogin.UserID, false);
 }
 else
 Message.Text = "Sorry! Your login or password is incorrect. <br>Please log in again.";
 }
 else
 {
 Message.Text = "Sorry! Your login or password is incorrect. <br>Please log in again.";
 }
 }
 catch(Exception myException) {
 ErrorMessage.Text = "Oops. The error: " + myException.Message;
 ErrorMessage.Text += "<br>" + strSQL;
 }
 finally {
 myConn.Close();
 }
 }
 }

my logon.ascx file contains this code

<%@dotnet.itags.org. Control Language="c#" %>
<script runat="server"
 public String BackColor = "white";
 public String UserID {
 get {
 return User.Text;
 }
 set {
 User.Text = value;
 }
 }
 public String Password {
 get {
 return Pass.Text;
 }
 set {
 Pass.Text = value;
 }
 }
 public bool IsValid {
 get {
 return Page.IsValid;
 }
 }
</script>
<table style="BORDER-RIGHT: black 1px solid; BORDER-TOP: black 1px solid; FONT: 10pt verdana; BORDER-LEFT: black 1px solid; BORDER-BOTTOM: black 1px solid" cellspacing="15">
 <tbody>
 <tr>
 <td>
Login:</td>
 <td>
 <ASP:TextBox id="User" runat="server"></ASP:TextBox>
 </td>
 </tr>
 <tr>
 <td>
Password:</td>
 <td>
 <ASP:TextBox id="Pass" runat="server" TextMode="Password"></ASP:TextBox>
 </td>
 </tr>
 <tr>
 <td>
 </td>
 <td>
 <ASP:Button id="Button1" runat="server" Text="Submit" OnServerClick="Submit_Click"></ASP:Button>
 </td>
 </tr>
 <tr>
 <td valign="top" align="middle" colspan="2">
 <asp:RegularExpressionValidator id="Validator1" runat="server" ASPClass="RegularExpressionValidator" ControlToValidate="Pass" ValidationExpression="[0-9a-zA-Z]{6,}" Display="Dynamic" Font-Size="8pt">
 Password must be >= 6 alphanum chars<br />
 </asp:RegularExpressionValidator>
 <asp:RequiredFieldValidator id="Validator2" runat="server" ControlToValidate="User" Display="Dynamic" Font-Size="8pt">
 User ID cannot be blank<br />
 </asp:RequiredFieldValidator>
 <asp:RequiredFieldValidator id="Validator3" runat="server" ControlToValidate="Pass" Display="Dynamic" Font-Size="8pt">
 Password cannot be blank<br />
 </asp:RequiredFieldValidator>
 </td>
 </tr>
 </tbody>
</table>

Please help!

thanks!I followed this article and got it working,

<<http://support.microsoft.com/kb/301240/EN-US/>
I know it is SQL Server based, but you might be able to convert it to Access backend.