You are linking to: InDesign tools and panels don't respond to mouse clicks (Windows 7/Vista), but I have same problem on a Mac.
Do you know what I can do to solve this problem? I must add that the problem does not show up every time I open Indesign.
I'm branching this to a new discussion.
If that's a new Mac, I assume it Sierra as its operating system. CS6 is not supported under Sierra and if there's a retina display that could complicate things even further.