Background for Q1- My desktop surge protector has a master switch. When I have Windows shut down my computer each day, the computer automatically turns itself off. That is, all the lights on the computer tower go dark -- so I assume that it is *truly off.* Even so, I have always turned off the surge protector's master switch before leaving the computer room. My son-in-law says that I shouldn't turn off the master switch. He says that he read somewhere that a computer "does better" if it remains plugged into a source of power even when the computer is turned off. QUESTION 1- Is there any truth to what my son-in-law thinks he read? That is, does a computer "do better" if it remains plugged into a source of power even when the computer is turned off? If so, can anyone tell me why this is so? Background for Q2- My 3-year-old computer is plugged into a surge protector, together with several peripherals. That protector sits on my desk -- it is designed as a stand for my computer monitor to sit on. It has only 4 outlets. Since I have more than 4 peripherals, I have a second surge protector which sits on the floor behind my desk. My computer's surge protector is plugged into the surge protector on the floor. Several days ago, as I was shutting down the computer, there was a very brief power outage -- the house lights went off then immediately came back on. Right at that very moment, my computer died. The repair shop replaced my motherboard. They said the motherboard wasn't fried but just "got broken." QUESTION 2- I am interested in opinions as to why my surge protectors didn't prevent this. Does plugging one surge protector into another surge protector defeat their purpose, I wonder? Any comments will be greatly appreciated.