Hi Lawrence, all,

Glad to hear the 'copy it all over and point to the right
folders' method got things going for you. It's a bit strange
that 'setup32' failed, though.

There's no 64-bit version yet... probably not for a while;
the 32-bit version appears to work quite well on 64-bit systems.
Though one does need to use the revised (32-bit) 'setup',
as Arild mentioned. (The original 'setup' was -- prepare to
recoil in horror! -- a 16-bit program, from the days of Windows
3.1. Since it worked Just Fine, I had no particular reason to
move it to 32 bits. When Vista came out, I got reports of it
failing, so I made the 32-bit 'setup.exe' and posted it.)

Owen and Hartwig are correct: you _can_ just copy the entire
Guide folder over to a new machine. This spares one the need
to configure Guide on your new box (lat/lon and time zone settings,
data shown, limiting magnitudes, colors, and so forth).

64-bit software has some benefits for very memory-intensive
programs. (The obvious example being one that can use more than
4 GBytes of RAM: a 32-bit program simply can't do that.) Guide
isn't at all memory-intensive, however, so I don't expect it to
gain anything by going to 64 bits.

It also seems to me as if math-intensive software might benefit
from going to 64 bits, but nothing I've read supports that idea.

-- Bill