LightWorks washed out

[Anonymous]

Folks: I rendered this in lightworks (sun off) using the sky and sun objects. I can't seem to stop it washing out:

The intensity of both lamps is dwon to 15% and I have darkened the roof material for the lightworks engine. But this doesn't seem to effect the results. It's a large file and takes a long time to render. Have I exceeded some threshold?

[Dwight]

You wouldn't happen to have more than one sun object, would you?

And where are the great trees from?

[Anonymous]

Hi Dwight!

Nope: just the one sun (no Tatooine effect).

The trees are from the INT library: Tree deciduous 02 15 with no branches shown and a simplified crown - 50% density 8 resolution and 1500mm crown parts sphere diameter. Done this way to save on polygons.