Happily (obviously) it's returned to normal service, for now at least. I'm hoping it's plain sailing until (and beyond) the release of Journey to Altmortis, but in case the problem recurs or even worsens I thought I'd post a heads up so that if I appear to disappear off the face of the internet people know it's probably just a case of computeritis rather than anything more sinister.
That said, I'd really rather not be forced to delay the release of Journey to Altmortis because of technical issues.
So, let's hope it does come out in the final week of this month.
Thaddeus