I started having a problem on my 12" PB a couple of days ago, and nothing I have tried so far has helped at all. Every time I try to load up Mail, it gives me the spinning beach ball and says loading address book, where it stays until I force quit. If I leave it trying to open it seems to put a good load on the processer because the fans come on and stay on until I kill it. Safari started having a problem the same day where whenever I try and enter text into any field on a webpage, it freezes, the only solution also being force quit. I have tried resetting, running software update, running virus scans, and nothing has helped me. Anybody have an idea or three?