Unwanted purple background with image texture When i add a texture image to the background of the world, an unwanted purple color comes with. I don't know how to delete it (the purple color). I see it in the preview before adding the texture image from my folder. After adding the image, the preview is OK but if i render my 3d view i have always this purple color with my image. Somebody has a solution ? 

(with blender 2.74)

Thanks for your help.

Matthieu

P.S : My light is not purple and it is not a duplicate. No files are missing and i don't use blender render but cycles render.
I can see my image in the preview window. My problem is : when i assigne a texture the background is a mix with purple color and my texture. I don't want this purple color ! 

I think it's a bug. It works great with my older version of blender (2.66a).
The rest of the environment outside of the window probably doesn’t have a texture on it since you’re trying to use window space for the mapping. The purple is probably being emitted from the environment dome that’s outside your camera view