I use three monitors running from a high spec laptop so that I can take my work away with me. The problem is that, when away, I only have the single screen on the laptop.
If I run 3ds Max the layers rollup, for instance, will always appear on screen if I click its icon on the ribbon, but the render setup dialogue box will not: because it is displaying on a non-existant screen somewhere to my left.
There is a tortuous way to retrieve it, but I have to keep Googling it. Life would be a lot simpler if there was a button that called all windows and dialogue boxes to the centre to be rearranged at will.