hi,
actully, i did everything i can, i spent a few hours with it and included uncheck the check box in the scene set-up page, but the walls still come with it and the check box is still CHECKED!
the pre-view on the scene set-up page is ok. every time after i click the button to change the attributes, the pre-view got updated, than go ahead render again, the rendering just keep same(with the walls).
the color or material is ok, got updated.
i was a software engineer and used work on gui/graphics/cad aplications, for my point of view, the interface of solidworks(at least, in scene set-up page) is not well designed or tested.
i'm very appreciate your help and thanks.
hchen1228.