After the last updates, I was getting a kernel panic at reboot; hard-resetting and then powering on again and it seems to boot fine. I suspect the problem has to do with the ATI Catalyst driver, as the panics occurred when rebooting after upgrading or downgrading the driver. I originally upgraded to 12.9, but rolled back to 12.8 after discovering that 12.9 broke my screen brightness keys. I also had to roll back Xorg to 1.12 because Catalyst doesn't support the new Xorg yet. Both times I rebuilt the module and (just to be sure) the kernel image before rebooting. I rebuilt them again once the system was back up, rebooted, and it worked. Any ideas how to debug, seeing as this just sort of popped up out-of-the-blue? If the kernel even logs a panic, where do I find it so I can figure out what caused it?