Unavailable for the weekend

Just a quick update to say that my ancient computer has become so hesitant and arthritic that it’s going to have to be rebuilt with a new hard drive.  That’s going to take most of the weekend, so I won’t be around for a day or so.  If I don’t answer your emails in that time, it’s not because I’m ignoring you, it’s just because I have no way of seeing them

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