MBP Backlight won't turn off - Lion

[EEXOOO]

My backlight won't turn off after upgrading to Lion. Done some search and it seems like there isn't a way to turn off through System Preference.
Is there any commands (command line) that can toggle on/off the backlight?

 

[hehe299792458]

keyboard or screen backlight?

 

[EEXOOO]

keyboard or screen backlight?

Sorry, it's the keyboard backlight I'm referring to.

 

[bozz2006]

Same here. On all the time.