My IT department just made me switch from Mail to Entourage 2008, which they swear plays nicer with our Microsoft Exchange server. A few of its quirks really bug me, though, and my trips through the various settings menus and help topics haven’t helped. First, when I’m starting a new message, I have to click between lines in the To field to add more recipients--commas or semicolons between the addresses don’t work. Really? Second, it keeps auto-correcting iPhone to “Iphone,” which just makes me look like I can’t spell. And how do I include my signature on all messages by default?