Hi folks,

Please keep comments about this problem coming. I've been hearing a
bit about it, but have (at present) little clue as to its cause.

Previously, I'd heard simply that asteroids vanish. The comment
that turning MPCORB on, then off, causes them to vanish is a _very_
important clue; I'm hoping that will enable me to provide a solution.

Also, I'd suggest putting the second Guide CD-ROM in the CD-ROM
drive and then running the program. The reason this may help is
described at

http://www.projectpluto.com/faq_curr.htm#missing_asteroids

I think the problem may go beyond this issue, though.

-- Bill