I've been using AE CS5.5 on my mac for years. Just yesterday - a program - Mocha - opened. I have no clue where it came from. Now, It opens at start up & I have no way to quit it. All such options are grayed out. it's logo has replaced the old AE logo in my dock. When I right click - everything is grayed out. Can someone help me both understand what happened and why I can't quit this program. Many thanks!