First the positive.  90 pages of the new book completed, estimated total 250 pages.

Now the negative.  All my (5) observatory computers are XP-based machines as there are still plenty of astronomy bits running on ancient software.  As you know Microsoft no longer supports XP, this is apparently no problem for the 4 Intel machines – but a big problem for the Athlon which has now kindly locked me out.  Thank you very much Microsoft – like I need these unnecessary problems on top of trying to maintain a parallel imaging array.