Richard, thanks for that; I'll follow those items up and see what results (if I can find the manual!).
fobotsco, I mentioned that I'd disabled Window's Restart on Failure option in Startup and Recovery. Are you referring to something else that I can try?
Olly, tried it with all USB stuff unplugged. No change
BOAC, nope, it's not doing a restart. It's fully powering down before powering up again. A restart doesn't power down at all.
Thanks for the thoughts, all. Any more?
10 minutes later......
Richard, you're a star! Turned off all those options and the computer now shuts down as it should. All I have to do now is discover which activity is causing it to boot up again.
Should've asked you
before I spent dosh on a new power supply!
\
Cheers
