My PowerBook's power adapter burned out today. That is the third one that has broken since I got the PowerBook. The power adapter has again been getting very hot and seems to have been failing to charge the battery, indicating a full-charge when the battery was actually drained. I used it earlier today and then plugged it in again later and I got a popping sound from the power brick, no indicator light on the plug and no power to the computer. The last one broke in the same way. It is out of warranty, but should I try to get Apple to replace it anyway? This power adapter could be a safety hazard. I'm glad that I don't leave it plugged in unattended.