I have successfully installed Windows 7 on my 2100 (upgrade from Mini 10) and am loving this netbook more than I thought I would. I'm having some minor problems, but the one that really has me stumped is the brightness control. I can't get Windows 7 to control the brightness via the Mobility Center (Windows Key+X) or Power Options. The keyboard controls work fine but I like the screen dimming feature of Win7. Can anyone verify that they have working screen brightness in Vista/Win7 (not the keyboard controls)?