I need some help tracking down where this setting is stored. Here is the situation... I have 2 user accounts on this 2.4 SR MBP. When the computer is 1st booted the kb backlight is on and the display is dimmed to the same level regardless of the ambient light levels. When I log into MY account on this machine the levels remain and the light sensors are completely non-responsive even if I cover the speaker grills completely. Now, if I log into my wife's account on the same machine, everything works just as it did before. Auto-dimming of both the kb and display back to normal. I have tried resetting the SMC, PRAM, trashing all prefs in my user folder, trashing prefs in the root library folder. Where are these settings stored? Any ideas on how to reset them?