can you describe or take a picture of it. i assume that your clip on the connector has broken off. this happend to one of my mobo's as well. all i did was basically get a magnify class, and a tweezers. hold the clip and allign one side of the knubs on the black clip and allign it bak into the hole in the connector. then slide your ribbon back in and close the clip.
I assume that IF your clip is broken or does not close properly then your backlight ribbon moves or is lose.
if you have any questions you can e-mail me at : jonyboy_462489@hotmail.com or add me to msn.