invisible object (2.47bug maybe)

Ok i got a scene where when i create new geometry, the new geometry got 000 in dimension so object are invisible. if i link that object to a new scene it s still invisible. if i create a blank scene in the same blender file, i can create new object. but if i duplicate the entire scene i cant.
dag

when the cursor is lost and you create object you can only create empty mesh and transform are mad.