okay, here's the deal. why is it that whenever I install a new version of iTunes and I hook up my iPhone, iTunes wants to erase all my contacts, songs, etc. it tells me that my iPhone is synced with another iTunes account and that everything on the iPhone will be erased. how can I make it to where my contacts aren't erased? there has to be a way to do this. after all, what would happen if I got a new computer? surely iTunes can't expect me to lose all my info just because I'm syncing it to a new computer. losing my videos and music I can handle. iTunes wanting to erase my address book is something I can't handle. any advice?