Bad news? I am on Windows and stopped with CS6. You may get more specific/better advice on Adobe's forum.

But a question. When you upgraded to Mavericks, did you use the migration assistant or do an in-place upgrade? If so, Adobe applications don't do well with either. The advice, if either above are true, is to uninstall, reboot, run the cleaner application for your version, reboot, then reinstall.

mike