Last night my MacBook (Black late 2008 version I think) began to show some very strange symptoms. The screen which has previously showed no signs of problem lost its backlight. There has been no impact/liquid incident of any nature. I turned the unit off and left it for a few hours before turning at back on again - at which point the backlight came on for a fraction of a second before failing again (same happens when I try again.) I can still see the screen display in the right lighting (at a strain) so I know the display itself is working fine. Playing around with the brightness settings using the keyboard yields some strange results as I drop the brightness down to 0 and then bring it back up to 1 bar the backlight revives itself for a couple of seconds, occassionally longer however during this period of revival the screen has a slight flicker as though it is struggling to stay lit before failing again. This happens every time - I can quickly press brightness up/down and it will continue to behave the same way. I am struggling to determine what could be the cause of this issue, surely if it were just a faulty connection then toying with the brightness would have no bearing on whether the screen is lit or not? Or is that misguided? I noticed a few others had experienced similar problems as a result of some sort of impact/spillage but as I said, in my case there has been nothing of the sort. I'd really appreciate some help as to where my problem stems from. Thanks in advance all.