My brother (who bought a MacBook this weekend, about two weeks after I bought myself a MacBook) called me last night with a bizarre problem (or, at least, it seemed bizarre to us). Two folders on his desktop (each contained a small application) had completely disappeared, and even a search in Spotlight couldn't locate them. In addition, his address info in Address Book was gone (he only had one entry in Address Book), and his Dashboard only displayed the default widgets, not the ones he had previously put there. I was stumped. I have no idea why this happened. Now, one thing to add (I'm not sure if it's related) is that he had changed the name of his home folder by right-clicking on it. I told him earlier in the day that I didn't think you could change the name of the home folder, and when he restarted his MacBook, he found that the home folder reverted to its original name (as I expected it would) ... but then he could no longer right-click on it at all. Are all of these things related? Any thoughts? We're both fairly new to OS X, so any help would be appreciated. Thanks!