Hello I must have changed a setting somewhere and now my render is being washed out. I have checked the lighting by turning off all lights and it still comes out washed. Strange thing is that while its rendering it looks ok just seems the very last thing it does is apply a setting that causes the wash. I did have mist turned on but have turned it off and it still occurs.
Im sorry but I cannot add the blend file as it is too large but here are two screen shots one while it is rendering and the final image.

you can see the rocks are a good example of the wash I am talking about?