Tiziano Magni wrote:

"...how switch on this new [UCAC-2 proper motion] feature?"

It should have occurred to me that I left out one little detail in
this update: if you run Guide in Italian, the UCAC-2 stars (either
from the CDs, or downloaded with the new function) will fail to show
proper motion. I've just fixed this. Download this file (about 6 KBytes):

http://www.projectpluto.com/ucac2_i.zip

and unZIP it in your Guide folder, and the UCAC-2 stars will move as
they should. Thank you for catching this error.

Other languages, incidentally, aren't affected. But the translation
into Italian is unusually complete, thanks to the efforts of Giuliano
Pinto. In this case, I had updated the English versions of two files,
but had neglected the Italian versions.

-- Bill