I first installed the free version of DisplayFusion 3.1.7 and initially enabled the titlebar button to move from one screen to another. I updated twice up to 3.1.10 where I decided to turn off the titlebar buttons. The skin was removed but the button remains.

I have un-installed the app, re-installed earlier versions to try and turn it off, turned it on and turned it off without any change from within the app.

How do I get rid of the button? It even still functions. See image below, DisplayFusion is NOT installed.

Thanks for your reply. The reason I am convinced it's part of your program is that when I enable the title bar buttons within the app this button vanishes and the skinned version is in the exact same place. As I've mentioned it also functions exactly as the button should. I have not tried another window management app.