Sometimes they do not display drop shadows with duplicate objects, see attached screenshot.
http://www.pixhost.org/show/1845/14900873_sshot_shad.jpg
The original object casts a shadow. That I can find nothing in program help.
What am I doing wrong?
thanks for the advice
Peter
Make sure your object is setting on the ground. If it floats above, no shadow.
Right click on object > Move Object > Snap to ground
You can also switch your camera view in the camera tab and see if the chair is touching the floor.
Ed