[vtkusers] Actors all disappear!

[Michael Hanley]

Further update:

When I rotate the camera, the actors appear at certain random camera 
aspects and then disappear again. I have 3 actors: a patella and 
cartilage stl, as well as a normalActor consisting of 208 points using 
glyph3d. If i remove normalActor, the other 2 actors reappear. I don't 
know what I have done.

-- 
Regards,

Michael Hanley

Bioengineering Research
Room 205a
Engineering Building
Belfield, UCD.