Sony VAIO VGN-CR100 Series User Manual page 167

What should I do if the external display stays blank?
If you cannot change the display output with the Fn+F7 keys, you need to change the settings for the external display with
VAIO Central. To change the settings, launch the VAIO Central, click the Categories tab and select the control item for the
external display, and then click to select the check box for changing the options to detect the external display. Then, try the
Fn+F7 keys to change the display output.
How do I run Windows Aero?
!
This Q & A entry applies to selected models only.
To run Windows Aero, follow these steps:
1 Click Start and Control Panel.
2 Click Customize colors under Appearance and Personalization.
3 Click Open classic appearance properties for more color options.
The Appearance Settings window appears.
4 Select Windows Aero from the Color scheme options on the Appearance tab.
5 Click OK.
For information about the Windows Aero features, such as Windows Flip 3D, see Windows Help and Support.
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Troubleshooting