I realised at about 10:30 yesterday morning that I got far too little sleep at the weekend - yesterday was pretty hard.
This morning it felt quite cold, and although I worked a little late last night it was pretty much dark by the time I got home at 8:30pm. Nooooooo...its far too soon to be thinking about autumn.
It looks like the new hard disk, whose problems I ascribed to a faulty jumper, really is temperamental after all. Whilst the newly-configured computer was running fine on Sunday, Jacqueline noticed at around about lunchtime that it had crashed. She restarted it, it was Ok. However I popped my head in this morning, only to see that it had crashed once again, showing an ominous message "Primary Hard Drive 0 not found", which to the non-computer-literate means something akin to "You're up shit street". Bad News, so I turned the power off.
After my shower I had another quick look. This time the computer booted up just fine. So it looks like the data is "safe" (though I kicked off a backup just to make sure) but the drive is most definitely suspect. Since it is the boot drive its not really acceptable, so I guess I'm going to need to buy a replacement.
Still, this does tend to suggest that there was nothing wrong with the computer I first tried the drive on, so I might have a try at upgrading it once again sometime.