I have a similar issue, but I already have InDesign completely downloaded. Every time I try to open the app from the dock—it seems like it is loading, but when I try to open a specific document I get the dreaded rainbow wheel. Please help someone. I'm super frustrated.
Thanks, Steve. It seems to be working now, but only after 3 restarts. I am on a Mac, OS X El Capitan v 10.11.5