Last night my Mac Pro decided to reboot several times of it's own accord. I missed any errors there might have been, as I was trying to sleep at the time and was woken up by the startup sound several times, when I came to investigate it was at the log-in screen, and has worked fine since. I'm trying to track down the problem, and I tried to read the panic.log, but it's not there in library/logs/? Does this just mean I haven't had any panics? I've search for how to turn panic logging on, but all I can find is advice to turn it on in the Console app preferences, but the option isn't there, so I assume that's pre-Leopard advice?