static void Display(string sMessage, DisplayColours eColour = DisplayColours.White)
    {
        if (eColour == DisplayColours.Yellow)
            Console.ForegroundColor = ConsoleColor.Yellow;
        if (eColour == DisplayColours.Blue)
            Console.ForegroundColor = ConsoleColor.Cyan;
        if (eColour == DisplayColours.Green)
            Console.ForegroundColor = ConsoleColor.Green;
        if (eColour == DisplayColours.Red)
            Console.ForegroundColor = ConsoleColor.Red;
        if (eColour == DisplayColours.Magenta)
            Console.ForegroundColor = ConsoleColor.Magenta;
        if (oFptr != null)
        {
            oFptr.WriteLine(sMessage);
            oFptr.Flush();
        }
        Console.WriteLine(sMessage);
        Console.ForegroundColor = ConsoleColor.White;
    }