Quoting LonelyPilgrim from 08:57, 8th Aug 2008
An electron can only be in one place at a given time. The problem arises because we can not observe the electron in that place without changing its behaviour, and hence, its place. So, for purposes of calculation, the electron has a probability of being in several given places at any given time. It is really in only one of those places, but we have no way of knowing which one so we treat it as though it is in all of them.
This is incorrect. The measurement defines the position of the electron. It is not waiting to be revealed - it doesn't exist before the measurement.
Consider the example of the wave-like interference of electrons. If they were particles which always had a position, albeit an unknown position, then they would not produce an interference pattern consistent with waves.
Quoting Power_Metal_Dom from 12:45, 8th Aug 2008
If so then can you give an instance of when an object does not have a spatial location?
Think of waves, a given wave does not have a definite position. Now, if different types of waves combine they can form a wave packet which can be given an approximate position, even though the individual composite waves don't.