greetings. i've recently run into some frustrating problems with mail and address book. when i launch address book, it loads up, but the window for address book doesn't show up so i can't see anything, nor does it go into address book at all. it basically doesn't respond, so i have to force quit it to quit the program. with mail, i can't quit the program unless i use force quit. also, when it's retrieving mail, it gets stuck. it can recognize the new mail on the server, but it doesn't download all of it. it just hangs at one of them. any suggestions? i don't want to format to fix this.