Do you have 'Casts Shadows' turned on for the light? Do you just have one light in the scene? if there are a lot of lights they could be washing out the shadow. It seems to me that if you have a lot of geometry in the scene this weaknes the shadows, you may need to turn the 'Shadow' strength up in the lights paramiters pallet, in this situation also try un-ticking (U.S. un-checking) 'Casts Shadows' in the properties box of the "Street" and any other items that do not need to cast shadows. Check the view through the shadow cam for the light, if necessary zoom in so that only the objects that actually need to cast shadows are included in the view. Try setting up your light as a spot, then convert it to infinite. If you post your render it may give us a clue to the problem. See the thread below for some more info on shadows: http://www.renderosity.com/messages.ez?Form.ShowMessage=1724574