Several of us experienced a problem with auto-shutdown when we updated from 241 to 250. As you recall, FBackup would go through the auto-shutdown sequence and 10 second countdown, but wouldn't shut off the PC. For me, you rolled my PC back to 241, which has the auto-shutdown working fine.
I see now that 253 has been released, but it doesn't mention the auto-shutdown. So before I update, can you tell me if this has been corrected?