GUITexture Import problem!

I have an image with 81 x 81 of dimensions

but when I Import it in unity, unity keeps changing the dimensions of the image to 64 x 64

how can I prevent this from happening I want the exact dimensions of the image stay as it is.

any help from you guys? thanks

select the asset itself in the project pane. The inspector will show the import properties; select the Texture Type pop-up and change it from the default, Texture, to GUI, then click apply!