Where are adaptive display brightness settings (dim the screen on idle)

I've installed Windows 7 RC on an Asus EEE 1000 netbook with Intel Mobile 945 Express graphics installed using default Windows 7 driver (which was updated via Windows Updates after installation).  I noticed that the screen will just turn off in the time set in power settings, but it does not dim beforehand.  I've read that Windows 7 has an "adaptive display brightness" setting that will dim the screen after a set period of time as an intermediate step before shutting it off.  I assumed I'd find a "dim screen after..." setting in the power settings, but can't find it.  Where should I be looking?  Is there a chance that my graphics driver doesn't support it and thus the setting doesn't appear?
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Windows can't control the brightness of the screen without there being specific drivers for the laptop that let you control the brightness of the screen in software. I know my laptop controls screen brightness in hardware, not in software. I can't alter the brightness via any means of just clicking around with my mouse. I have to hold FN+brightness up, or FN+brightness down. This is because panel brightness is a feature of the LCD panel, and not the graphics card.

So I wouldn't expect it to work on anything except hardware specifically designed to support it.

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On some laptops you are able to modify it in the power management settings, the windows mobility center (Windows key + X), and other locations.  See this paper from Microsoft to check if your laptop supports these features.

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Windows 7

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