Turned on computer, left room, came back to a black screen. Press the return space bar and screnn came back on showing desktop for about 10 seconds. I pressed return space bar again, and desktop came back on for 10 seconds. I pressed return spacebard again, and nothing, no screen, Screen is black, not blue.
"Tada" Microsoft sound is heard, but no screen.
Screen saver is disabled.(none)
Regards and Merry Christmas