I need help urgently, please help! My generic perspective view of my 3d house does not want to come up, or is out of focus. In the navigator preview shows the house, with a green line running on the side. Help please. Is there also away to reset it. I tried to click the " fit to window button, but it just brings up nothing. But in the navigator preview I can see the plan, but the green line is either across the little screen, or on the side of the little screen. Help.