I stopped taking a laptop on flights a while back. Yes, in part security. But mostly because I realized that damn, making me work on a plane smack too much of being a work-a-holic, and I can use an hour or two break here and there. And the one time I tried to stow my laptop overhead, the bastard ended up banged all to hell. I've had better luck packing it in a heavy laptop back and checking it.