Sometimes you have to just bite the bullet. Gorse Fox's Mac has been offering a free upgrade to Yosemite for several months. He has been resisting. The old adage "If it ain't broke, don't fix it" was firmly in mind. However, there were some security patches, and some newer apps available, and it has now had quite a while to bed down.
GF took the plunge and five and half GB of Yosemite downloaded during the afternoon. Then, after pressing a couple of buttons, the upgrade began. Thirty minutes or so later, a sparkly new system booted up. Voila, it works. Trouble free.
Meanwhile GF spent a pleasant hour on the phone to Agent Mulder. It appears that he will be off to Thailand in a few weeks, with the aim of meeting up with his daughter (who out there travelling). He wants to take some "beach time" and plans to head for Koh Lanta so he can meet up with Cousteau-cub and the Coventry Hobbit. Contact details have been exchanged... and hopefully it will all work out.