Visual Studio 2010

Hi everyone, first off thanks for any help you might give =)

I've just started learning to use visual studio with MS XNA Game Studio 4.0 a book by Rob Miles. Basically im not very far through, I am on the first project and I can't progress any further. clearly im doing something wrong i just cant figure out what! I've followed the book and basically the part I am at now is not working for some reason. Its a draw method to allow for a colour changing background.

This is my script


using System;
using System.Collections.Generic;
using System.Linq;
using Microsoft.Xna.Framework;
using Microsoft.Xna.Framework.Audio;
using Microsoft.Xna.Framework.Content;
using Microsoft.Xna.Framework.GamerServices;
using Microsoft.Xna.Framework.Graphics;
using Microsoft.Xna.Framework.Input;
using Microsoft.Xna.Framework.Media;

namespace Moodlight1
{
///

/// This is the main type for your game
///

public class Game1 : Microsoft.Xna.Framework.Game
{
GraphicsDeviceManager graphics;
SpriteBatch spriteBatch;

public Game1()
{
graphics = new GraphicsDeviceManager(this);
Content.RootDirectory = "Content";
}

///

/// Allows the game to perform any initialization it needs to before starting to run.
/// This is where it can query for any required services and load any non-graphic
/// related content. Calling base.Initialize will enumerate through any components
/// and initialize them as well.
///

protected override void Initialize()
{
// TODO: Add your initialization logic here

base.Initialize();
}

///

/// LoadContent will be called once per game and is the place to load
/// all of your content.
///

protected override void LoadContent()
{
// Create a new SpriteBatch, which can be used to draw textures.
spriteBatch = new SpriteBatch(GraphicsDevice);

// TODO: use this.Content to load your game content here
}

///

/// UnloadContent will be called once per game and is the place to unload
/// all content.
///

protected override void UnloadContent()
{
// TODO: Unload any non ContentManager content here
}

///

/// Allows the game to run logic such as updating the world,
/// checking for collisions, gathering input, and playing audio.
///

/// Provides a snapshot of timing values.
protected override void Update(GameTime gameTime)
{
// Allows the game to exit
if (GamePad.GetState(PlayerIndex.One).Buttons.Back == ButtonState.Pressed)
this.Exit();

// TODO: Add your update logic here

base.Update(gameTime);
}

///

/// This is called when the game should draw itself.
///

/// Provides a snapshot of timing values.
}
class Game1 {

byte redIntensity ;
byte greenIntensity ;
byte blueIntensity ;

protected override void Draw(GameTime gameTime)
{
Color backgroundColor;
backgroundColor =
new Color(redIntensity, greenIntensity, blueIntensity);
GraphicsDevice.Clear(backgroundColor);
base.Draw(gameTime);
}
}
}

If anyone can see where i'm going wrong and point it out that would be great. Probably something really simple i'm overlooking but this is the same as what is in the book so im lost. Basically it is telling me there is an error 'The namespace 'Moodlight1' already contains a definition for 'Game1'. Which im guessing is the public class nearer the top??? really new to this and havent got a clue =)

sorry if this is in the wrong section!