Sony VAIO VGN-SZ600 - Manual (Page 192)

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Troubleshooting
Touch Pad
What should I do if the touch pad does not work?
❑ You may have disabled the touch pad without connecting a mouse to your computer.
❑ Make sure that a mouse is not connected to your computer.
❑ If the pointer does not move while a software application is running, press the Alt+F4 keys to close the application window.
❑ If the Alt+F4 keys do not work, click Start, Turn Off Computer, and then Restart.
❑ If your computer does not restart, press the Ctrl+Alt+Delete keys and select Restart from the Shut Down menu.
❑ If this procedure does not work, press and hold the power button until the computer turns off.
!
Turning off your computer with the power button may cause loss of unsaved data.