I sent my powerbook in for service and it came back today. The sleep light works now, but the other two problems still exist- computer NEVER sleeps unless you shut it and the AirPort signal is always at 0 or 5 bars (never 1,2,3, or 4 bars). I would hate to send it in again because it is too much downtime for me and it pisses me off. I am sure they just reinstalled the OS which in my experiences fixes the sleep lights for a short period of time but then the problem begins again. All it says on the Service Detail sheet is "Problem could not be duplicated" Additionally I am upset that when I opened up my powerbook there was a big black hair on the trackpad. Also, they're are now 3 new scratches on the back of my powerbook (each about 1" long). I've had it with apple. Seriously. I'm going to call them very soon and complain. I have already complained to them 2 times about my iPod.