Okay, so I've just bought a MacBook pro 13". So far so good. However, I'm a little concerned... you see... I'm a messer. I always played around with XP, Vista, and 7, and went into system files and stuff and played around with things. However, I'm absolutely terrified about doing this with OS X, especially accidentally. I was fiddling around with the sidebar with Finder, and enabled the Mac HDD option, so I could go into it. I was curious... and opened it, then crapped myself in case I was to accidentally move stuff around, thus breaking the OS. I quickly came out of there and disabled that option, but now I've got it into my head I've done something, lol. I wouldn't have just by enabling the HDD side option would I? I only did it because I transferred my music from my Windows machine on to here, but wanted to make sure the music I transferred was only located in the Music folder and nowhere else. I want to keep this machine tidy. But yeah, is it hard to do what I've said, to actually mess up the OS? Also, I'm concerned with uninstalling. I mean, I remove the application, and place it in the trash, but apparently you're meant to clear out other files leftover, but I don't want to in case I break something. :/ Is it okay leaving those leftover files? THANKS.