Sony VGN-TT250N - Manual (Page 30)

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Getting Started
Using the Battery Life Conserving Wallpaper
You can conserve your battery life just by setting the specific wallpaper as your desktop background.
To set the battery life conserving wallpaper
1 Click Start, All Programs, and VAIO Control Center.
2 Click Display and then Long Battery Life Wallpaper Setting.
3 Click Set Long Battery Life Wallpaper.
At the confirmation prompt, click OK.