Until I started using Office365, I have never seen this behavior in Microsoft Office programs. I'm in grad school and often have Word, Power Point or Excel resized to half-screen because I am looking at lecture slides or something online on the other half of the screen. When the applications are like this, and I use any option from the ribbon bar (Insert: Symbol, Font Color, etc) the pop-up window does not close automatically. So many times I change or insert something, then go back to typing, often getting several words in before I realize nothing is happening...because the little ribbon window is still open.
Does anyone know what I can do about this? Is this just a "feature" of the software? I had a look through Options but didn't see anything relevant.