I'm not sure if this is in the right forum. I have a Powermac G5. I've had it since July 07. I have had no problems, haven't had any changes recently. Today my mail and Address book froze while I was entering contacts in the Address Book. It did a force quit and ALL of my contacts are gone! Not just the one I was trying to put in at that moment, but every contact. I tried syncing it w/ Iphone and that just erased everything from my phone. I've tried restarting. Anything I can do???