Error in connection: could not find installable ISAM

[Ctwizzy]

I have followed the solution my Microsoft and other sites none work.

here is my code

private void tbPunch_Click(object sender, System.EventArgs e)
		{
			
			String conString = " ";	
			try 
			{
				//contructor accepts the database path
				
				conString=@"Provider=Microsoft.Jet.OLEDB.4.0;DataSource=C:\Documents and Settings\Me\My Documents\Visual Studio Projects\DB\testDB.mdb";
								
				DataSet oDS = new DataSet();
				con = new OleDbConnection(conString);
				con.Open(); ***** this is where the error is
				OleDbDataAdapter myDataAdapter = new OleDbDataAdapter();
				myDataAdapter = new OleDbDataAdapter("Select * From clockTable", con);

				OleDbCommandBuilder myCmdBuilder = new OleDbCommandBuilder(myDataAdapter);
				
				myDataAdapter.Fill(myDtPunch);
				this.ShowCurrentRecord();
			}
			catch (Exception ex) 
			{
				MessageBox.Show("conString = " + conString + " Error in connection : "+ex.Message);
			}
			finally 
			{
				// dispose of open objects
				if (con != null)
					con.Close();
			} //finally
		}

		private void ShowCurrentRecord()
		{
			if (myDtPunch.Rows.Count==0)
			{
				test1.Text = "No Entries";
				test2.Text = "No Entries";
				return;
			}
			test1.Text = myDtPunch.Rows[rowPosition]["IDnum"].ToString();
			test2.Text = myDtPunch.Rows[rowPosition]["position"].ToString();
		}

Anyone know how to fix this, its put a huge halt in me continuing,

thanks