Why does my pc suddenly shut off and restart, for no apparent reason, not to me anyway - as simple as possible please guys, you know what a thicko I am - "we do indeed," grins Lie-in King - Ta Muchly and Take Care.
I had this problem a year or so ago. In my case the mains adapter had a neon indicator and I noticed that when the PC went off, so did the neon. I replaced the mains adapter and this solved the problem