The last time Apple unveiled a new version of OS X with barely any changes to Mail.app, it was a bit disappointing but no big deal. Now, however, more than two years after Mail's last significant overhaul, the extremely incremental upgrades are getting annoying. And reports of a host of troubles with Mail, Gmail, and IMAP might make Mail 7 actually worse than its predecessor.Small changeThough 'What's New in Mail' gets its own entry under the program's Help menu, there are only four items on the resulting list. They're all minor additions to previous revisions, and some are more useful than others.Adding attachments to the list of ways you can search your mail messages marks Mail 7's one genuinely welcome improvement. The progra
