Sony VAIO VGN-P - Manual (Page 116)

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Troubleshooting >
Computer
What should I do if the green power indicator light turns on but my screen remains blank?
❑ Press the Alt+F4 keys several times to close the application window. An application error may have occurred.
❑ If the Alt+F4 keys do not work, click Start, the arrow next to the Shut down button, and Restart to restart your computer.
❑ If your computer does not restart, press the Ctrl+Alt+Delete keys and click the arrow next to the Shut down
button and Restart.
If the Windows Security window appears, click Restart.
❑ If this procedure does not work, slide (in the direction of G on the switch) and hold the power switch for more than four
seconds to shut down your computer. Unplug the AC adapter and leave the computer for about five minutes. Then plug
the AC adapter and turn on the computer again.
!
Turning off your computer with the Ctrl+Alt+Delete keys or the power switch may cause loss of unsaved data.