Xna Texture 2D GetData, SetData problem

Hi there.

This is my problem.
I got one big texture consisting of many small tiles.
When I click somewhere on this texture I want to highlight that area and I want to "extract" the selected part of the texture.
The highlighting work fine. The problem comes when I am to copy the selected part of the texture into a smaller one.

The code looks something like this

private void Extract_Texture(Rectangle rect)
{

int[] colorData = new int[rect.Width * rect.Height];

//Get data from the big texture
_texture.GetData(0, rect, colorData, 0, (rect.Width * rect.Height));

//Create the small texture
_choosenTexture = new Texture2D(GraphicsDevice, rect.Width, rect.Height);

//Place texturedata in the small texture
_choosenTexture.SetData(colorData);

}

It looks like it would work but when I try to place the texture somewhere on the game field it show's nothing.

All help would be appreciated.

*EDIT*

Solved by setting the correct SurfaceFormat.

[Edited by - ThereWillBeGame on August 15, 2010 8:26:21 AM]