I was playing a video file from a CD when all of a sudden the powerbook turned off by itself. From that point, every time I try to turn it back on all, I hear the startup chime but the screen remains blank. The fan and harddrive sounds like they're running as well. I also tried sticking a bootdisk in it and it was accepted but now it won't eject. Also to note, the caps lock key LED doesn't turn on. I have no idea what's going on. It has been working fine for 3 years now, this is the first problem I've had with it.