This time the download started off with 27 minutes to go. I looked in on progress regularly. Then...... ***!!!
The screensaver and sleep mode had kicked in.
- So - the machine is now set never to go into standby in any shape or form.
- "Do not disconnect your device" I am commanded.
- At least it did not close down and corrupt the satnav, thank goodness.
- There are now 37 minutes to go. Thirty-seven!
- Where did the extra ten minutes come from and why? Grrrrr...