Such a simple fix and I spent over an hour on this:
http://www.adobepress.com/articles/article.asp?p=1930509&seqNum=3
This is the part that helped me in case anyone goes nuts trying to figure this out. (#2 solved my problem):
Working with the application window on Mac OS
- In Normal screen mode on Mac OS, resize the application window by dragging its lower right corner.
- Click the green Zoom button (
), located beside the Close and Minimize buttons at the left of the title bar. The application window expands to fill the screen. Click the Zoom button again to return to the previous window size.
- Reposition the application window on your screen by dragging the title bar.