Yesterday, my girlfriend bought a 2010 MacBook Pro 13". One of the features she was excited about was the backlit keyboard because she enjoys working in low-light settings. This feature on my 2009 MacBook Pro 13" worked flawlessly, seamlessly turning on and off as needed. However, on her MacBook Pro 13", the keyboard backlight is always on, even in a brightly lit room, even when she's using the computer right next to a desk lamp. I have to literally shine a flashlight at the ambient light sensor for it to register and turn off the keyboard backlight. Anything short of that and the backlight stays on. Anyone else experiencing this problem? The guy at the Apple Store said that the ambient light sensor is working fine because the screen brightness does in fact respond to subtle chances in ambient lighting, but the keyboard is not. Is this a hardware problem or a firmware one?