OK, my contact said that renaming the view (to keep it handy as a reference) and creating a new view was enough to solve the problem.
Thanks to all, for the ideas in this thread.
Regards,
Hilmar.
Difference in opinions hath cost many millions of lives: for instance, whether flesh be bread, or bread be flesh; whether whistling be a vice or a virtue; whether it be better to kiss a post, or throw it into the fire... (from Gulliver's Travels)