I have an early 2009 Macbook that's exhibiting the problem described by several folks here: http://forums.macrumors.com/showthread.php?t=1301981 The screen goes dark and is only revived by fiddling with the angle of the screen. When it gets to the right point, it turns back on. I am trying to determine whether it's cost-effective to repair and in particular whether it's the data cable, the inverter or the LCD. In the course of diagnosing it I did see that when the screen is black I can shine a light through the Apple logo and I see text on screen. Would it be correct to conclude from that that the problem is with the inverter and/or the LCD and not with the data cable? Or is that not a safe bet? My thought was that if the data cable is worn down and causing the failure then the image/text would disappear from the screen when the screen goes out, but if the image is still being sent then the data cable is/should be fine. Can anyone either confirm or deny this or give me a more informed opinion about which part I should target first in repairing it? Thanks!