Sony PCG-GRT230 VAIO User Manual page 171

Touchpad
What do I do if the touch pad does not work?

Try restarting your computer. Follow these steps:
1. Press the Windows key
2. Press U. The Turn off computer window opens.
3. Press R to restart the computer.

If the computer does not restart, follow these steps:
1.
Press the Ctrl+Alt+Delete keys simultaneously. The Windows Task Manager window appears.
2. Press and release Alt to highlight the menu bar, and press the Right Arrow key
.
3. Press Enter.
4. Press R to restart the computer.

If you still cannot restart your computer, press and hold the power button to turn off the computer.

If the pointer does not move while playing a disc, press Ctrl+Alt+Delete simultaneously to stop playback and
restart the computer.

If you are still experiencing problems, make sure another mouse is not installed.

You may have disabled the touch pad without connecting a mouse to the computer. See
.
to select Shut Down
To enable the touch pad.
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