Sony VGN-S570P - Manual (Page 73)

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Using Peripheral Devices
Models with the NVIDIA video controller
1 Click Start and then Control Panel.
2 Click Appearance and Themes.
3 Click Display.
4 Click the Settings tab.
5 Click Advanced.
6 Click the tab with its name beginning with GeForce.
7 Select nView Display Settings from the left menu.
To change the current display, select the desired display from the Current display drop-down list.
To display the output on the computer's LCD and the external display at the same time, select Clone from the nView
Display mode drop-down list.
To specify displays, use the Primary Display/Secondary Display drop-down list.
8 Click OK and then YES.