My PowerBook keeps turning itself off!

[jkp...@gmail.com]

I have been having a problem with my PowerBook that has been getting
worse and worse. If I have it on my lap, and then move too much, it
shuts off. What is annoying about this is that if I am working on
something and I havent saved, it gets lost. Any way to fix this?

[eze...@gmail.com]

At this point, is it running on battery or A/C power? I can't run
battery power at all so I have about the same issue.

[jkp...@gmail.com]

It's running on AC power.