I've noticed that on two of the Tivos that I've upgraded, I'm experiencing some hard lockup issues that only a power cycle will fix. The units seem to stop responding completely, ignoring remote commands and freezing on whatever video frame they were on when the crash occured. I know that the old Series 1 Tivos used to have some sort of a 'watchdog' process that would reboot the system at the first sign of a lockup or crash... it was probably even a little overzealous. Never, even with my extensive hacking and prodding, did I ever get the unit to freeze up.... only reboot. Why don't these new units react the same way? Is there a way to make them reboot, so I don't potentially lose a day's recordings? And is there any way to determine what's wrong without taking the box out of my rack and disassembling it to enable backdoors and retrieve the logfiles? Thanks in advance.