I purchased the My Passport For Mac over the weekend to get all my data backed up before I buy a new Mini or fix my old one. Anyway, I recently downloaded the new OS, but I have no idea how to use an external hard drive like this. My old one was a Clickfree device that backed up everything automatically. All I did was plug it in. Can someone please tell me how to get stuff saved? I know it's copy and paste, but that's about the extent of my knowledge. Is there a way that everytime I plug it in it saves any new data or music or pictures without me having to manually do it? I am going to set up Time Machine after I figure this out. Thanks!