This is something that has happened since my initial installation of XP on my bootcamp partition. Whenever the light sensor detects low light, the backlight turns on at full blast. This is normal. However, when I go to turn the backlight off completely (as to save battery or if I'm watching a movie in windows and I don't want to see the keyboard lit up) it turns it down, but not completely off. Even though the backlight indicator claims that it is down the whole way, it never completely turns off. In OSX when I do this, it turns it completely off whenever I set it to the same setting. has anyone had something similar in their MBP or any ideas of what is wrong? Is it just something with the drivers?