Is there anyway to force my PB's keyboard backlight to come on? Im currently sitting in my bedroom and trying to get the backlight to come on (F10) but it obviously isn't dark enough yet. But I would like the backlight on because it makes the keyboard easier to see. Is there anyway I can force the backlight to come on? Its that annoying part of the evening where it is not quite full light but not yet dark. 4.30pm to be exact.