As I posted in another reply the backlight cable also includes the wake from sleep switch and the airport antenna wires are wrapped together with the backlight cable . Sleep and airport problems can also be caused by pinched wires also. As a repair tech I was a ware that there was a problem with the iBook and the routing of the cables. > Is it a big deal? If you're one of the owners affected by the problem, > then definitely yes. Even if you're not, if the problem rate is high > enough it can concern you. But I really don't think the > pinched-backlight problem has gotten anywhere near the levels needed to > describe it as a "common" problem that affects "a lot" of customers.