i have a 3 yr old iMac. been running sluggish so i ran onyx... i noticed yesterday that my address book is gone... its not in toolbar, not in my applications. not in trash. i search for it and cant find it. #1, any idea where it could be or how to find it #2, all of my contacts from my iphone were synced with it - can i get those back? besides doing a restore to a previous backup? #3, if it did get removed, can i redownload it and will my contacts reappear?