I bought a used 15" Powerbook G4 Aluminum last summer. It had a small dent in the corner by the optical drive, but everything else seemed copacetic. Anyway, I work in a bar and one of my co-workers borrowed my laptop during some downtime. When she dropped it, it landed on one of those rubber bar-mats. It seemed to be fine at first until a few days later. Here is how everything started deteriorating: First, a black bar appeared across the middle of the screen. I found that if i stuck an aligator clip on the left border of the screen, the problem went away. About a week later, I started getting kernel panics after every 30 minutes or so of use. Shortly after that, I found that I could only sucessfully boot OSX once in every 5-10 attempts. It would usually hang just as soon as the login screen appeared. Now, I can hear the start-up chime, I can hear the optical drive working when I try to boot from a disk, but the display is completely dead. I have tried using an external monitor, but it displays nothing. Any insights? I suspect that maybe it's the video card, which means that I would have to replace the entire logic board, (or just learn to enjoy my new fancy paperweight). But I guess that maybe the hard drive could have been damaged? I don't have access to another Mac, or a PC with Firewire, so I haven't been able to try Target Disk Mode. I read a post somewhere (which I can't seem to find now,) about a Frenchman who had a similar problem and fixed it by mounting some little rubber feet underneath a certain part of the logic board. The idea was to put pressure on a specific chip, to help the broken solder joints make contact again. Has anyone tried this, or something similar?