Finally got to my grandmother's computer. From what I've seen, the Finder is restarting itself every one to five minutes. When I'm looking at Activity Monitor, a process called "crashdump" appears and disappears when Finder Restarts.

Bug? Malicious Script? Apple being a real jerk about upgrading ...

My grandmother's PowerBook G4 was recently reported by my father to have been randomly closing windows for no apparent reason. I have no additional information on this, as I'm still at home.

Anyone else experienced this?