Hi folks,

Found the problem and fixed it. As I suspected, it was a situation
where "fixing" one problem caused a new problem. If you go to

http://www.projectpluto.com/new.htm

you should be able to grab the updated version, and DSOs won't
be doubled.

The problem affected only NGC and IC objects, and would only have
occurred if you were using the December 12 version.

Please let me know if you see anything else. I've one more change
that I want to make to Guide, to enable better handling of display of
critical-list asteroids, NEOs, etc. I also want to fix any known
bugs, then make this an "official" update.

Thanks! -- Bill