新手，没什么分，请大峡帮忙看看这个程序错哪了``谢谢

using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Threading;namespace WindowsApplication1
{
    public partial class Form1 : System.Windows.Forms.Form
    {
        public Form1()
        {
            InitializeComponent();
        }       
        public void Display()
        {
            for (int index = 1; index <= 100000; index++)
            {
                // Generate two random numbers and assign to Top and Left of Label
                // Random object
                Random objRandom = new Random();                // Location Variables 
                int x = 0;
                int y = 0;                x = objRandom.Next(this.Width);
                y = objRandom.Next(this.Height);
                lblX.Left = x;
                lblX.Top = y;
                Thread.Sleep(500);            }
        }
        public void DisplayEnglish()
        {
            for (int index = 1; index <= 100000; index++)
            {
                // Generate two random numbers and assign to Top and Left of Label
                // Random object
                Random objRandom = new Random();                // Location Variables 
              int x = 0;
              int y = 0;                x = objRandom.Next(this.Width);
                y = objRandom.Next(this.Height);
                lblG.Left = x;
                lblG.Top = y;
                Thread.Sleep(100);
            }
        }
        private void Form1_Load(object sender, EventArgs e)
        {
            // Create a thread
            Thread draw = new Thread(new ThreadStart(Display));
            // Invoke thread            // Create a thread
            Thread drawEnglish = new Thread(new ThreadStart(DisplayEnglish));
            // Invoke thread
            draw.Start();
            drawEnglish.Start();
            draw.IsBackground = true;
            drawEnglish.IsBackground = true;
        }
    }
}我用VS2003运行一切正常，但是用C# 2005运行后就报个异常``汗``错误信息如下：
 lblX.Left = x;
线程间操作无效: 从不是创建控件“Form1”的线程访问它。