I've been trying to diagnose this problem for a while. Specs G4 800MHz 12" 600 somethingMB RAM, which I belive I've eleminated by running a lot of Rember on it (and switching the ram out) Combo Drive 30GB hard drive It was originally my mom's computer, and she has dogs which would knock it on the floor. To the best of my knowledge the falls never caused any real damage, but I bring them up for motive. I've taken apart the screen and found some screws came out of their place, and that the microphone cable was pinched (it has only given static for quite some time). So I removed the mic from the screen, and later from the body. I've never found anything wrong around the logic board. (though after removing the mic from the screen(leaving a wire down by the hinge) it sure seemed like it started crashing more infrequently, to the point where I thought I had solved it for a little while.) There are three basic ways it dies #1, Kernel panics, and you get the grey screen-o-death. #2, while using, the mouse will freeze and you have to reboot. #3, when waking from sleep the screen is on but the mouse is stuck. Its difficult to say which one is more likely. Its weird, you can use it for days and never have a problem. But then sometimes it will die a couple of times in an hour or two. What can I do to narrow down the problem? I could replace the logic board or hard drive, which are the two components that seem likely.