I was adding about a dozen contacts, when all of a sudden address book hung up and gave me the beach ball... I waited and waited for quite a while, and then noticed that mail was not responding. And then, Quicksilver went down... So I force quit address book, and mail(quicksilver quit on its own), and now my entire address book is gone.
I have another backup on a different computer, but I've never just lost the address book before! Maybe I have just been spoiled since my switch(almost 3 years now), but I have only lost data before from hard drive failures. Has this happened to any of you, and did you figure out the cause? Cheers