Blank "Save As PDF" screen? Acrobat DC won't let me Save As.

Hi,

Every time I try to "Save As" in Acrobat DC on my Mac, it just pulls up a blank screen - completely blank with no text or options whatsoever.  For example, if I create a PDF from multiple files, it will combine the files into a binder but won't allow me to save it from there.  If I then click to close the file, it will ask me if I want to save it.  When I click "yes" the blank screen will also pop up. 

I have tried the following:

- Uninstalling and reinstalling

- Restarting my computer

- Updating Acrobat DC through Creative Cloud

I am running OSX 10.9.4 on a 2.9ghz Intel Core i7 MacBook Pro w/ 8Gb ram and 80Gb of available space

Any suggestions? Thanks!