I've been having problems with address book not saving new contacts. Anything newly entered dissapears as soon I close the app. To add to my frustrations, the fans on my computer began to throttle while the address book app was the only thing open. A quick look at activity monitor showed me that address book was indeed using 100% of the CPU all by it's self (I'll try to post a screen shot a little later). I'm stumped at this point. I was planning a format later this wk for other reasons but I didn't want to run into this issue again on a clean install. Any ideas? Thanks