[Paraview] showing all points of a structured dataset

[nagi at toothycat.net]

Hi,

I've got a 3x3x3 set of points, and am trying to show all of the points 
individually. My VTK file looks like

# vtk DataFile Version 2.0
Volume example
ASCII
DATASET STRUCTURED_POINTS
DIMENSIONS 3 3 3
ASPECT_RATIO 1 1 1
ORIGIN 0 0 0
POINT_DATA 27
SCALARS volume_scalars char 1
LOOKUP_TABLE default
0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0


When I set 'Representation' under 'Display' to points, the point at the centre 
is missed out. In fact, for any 3d dataset of structured points I have tried, 
the interior points are missed out.

The points look like they are there, since 'Information' tells me there are 27 
points.

Any ideas how I can see all the points?

Thanks,

Nagi