Hi folks,
After a bit of fussing about, I was able to duplicate the problem,
with bitmaps missing in DOS Guide for Jupiter and Saturn and crashing
for those planets in the Win 3.1 version of Guide. Other planets worked
correctly.
It then occurred to me that I've added a slew of satellites for both
planets lately, which caused me to realize that the .ZIPs on the Web
site omitted the ephemeris files for these new objects. If you download
http://www.projectpluto.com/newsats.zip
(about 34 KBytes) and unZIP it in your Guide directory, these errors
will vanish. The only effect on the 32-bit Windows version will be that
the new satellites (11 more for Jupiter, 6 more for Saturn) will be shown.
-- Bill