So i pulled out my ram, that i thought was causing my powerbook to shutdown, and I'm still havign this problem. Now instead of just locking up on me it will just out of nowhere shut off. With decent battery life left. It shuts off and when I boot it back up my clock is reset to some old time. Im confused by what is causing this. It is a final revision powerbook. I saw an old post about this happeneing when battery power is dead because the laptops dont have backup batteries but the 15 inch werent on the list. And my problem doesnt occur when my battery is out. Anyways if anyon ehas some input that would be great.