I came in the control room around 5PM to find that all the channels for h0vemy were invalid, and the vacuum alarm handler was complaining loudly.  Telnetting in produced a long list of dead task and memory errors, so I rebooted it.  Had to run the startup scripts by hand (probably startup.cmd -> startup.h0vemy change).  Burtrestored it to midnight, and refreshed the CP PID values with the help of Richard.  It appears to be working OK now, but should probably be checked up on now and again over the weekend.