SFML problem

[nuclear]

On visual studio 10:

I've tryed out some code and everything was fine, but when I use this line:

sf::RenderWindow App( sf::VideoMode ( 800, 600, 32 ), "Hexagon Puzzle Thing" );

Or anything with RenderWindow I get an:

Unhandled exception at 0x76adfeb8 in SFML + Box2D Project.exe: 0xC0000005: Access violation reading location 0xcccccccc.

Code I'm using:

#include <SFML/Graphics.hpp>

int main()
{
	sf::RenderWindow App( sf::VideoMode ( 800, 600, 32 ), "Hexagon Puzzle Thing" );

	while( App.IsOpened() )
	{
		sf::Event Event;
		while( App.GetEvent( Event ))
		{
			if( Event.Type == sf::Event::Closed )
				App.Close();
		}

		App.Draw( sf::Shape::Rectangle( 350, 200, 600, 350, sf::Color::Green ));

		App.Display();
	}

	return EXIT_SUCCESS;
}

On visua studio 08:

The code above seem to work on 2008 version but when I add some Box2D code I get errors like these(it still works though):

1>LINK : C:\Users\Deividas\Documents\Visual Studio 2008\Projects\Project1\SFML + Box2D project\Debug\SFML + Box2D project.exe not found or not built by the last incremental link; performing full link
1>Box2D.lib(b2World.obj) : warning LNK4229: invalid directive '/FAILIFMISMATCH:_MSC_VER=1600' encountered; ignored