Hi Bob,
may I add to this that of no less importance is that the result (problem solution) should be made public here as well.
Let me start and publish my latest solution I got from Enrico:D :
Problem was that PMsystems, when rotated, the zoom points were not set correctly and hence I could not zoom back.
Got a new and corrected version of PMsystems (vers. 99) which has not appeared on the interim or final software page of PM so far.
Thanks
Best rgds
Peter