Before anyone says anything, yes i looked at mroogle but there is not a thread about this topic after 08. So whats the deal with sleeping the mac vs shutting down? i've noticed I shut the computer down whenever I am not using it. Its not a big deal for me, it takes all of 20 seconds to reboot. From what I have heard, it may damage the HD from the "jolt of electricity" given to it upon start up. Any truth to this? I guess I could put it to sleep when I am not using it throughout the day but at night is the common practice to shut down or sleep? Any advice is appreciated.