After the update, what was really happening & it was difficult to see. When I went (using the top right controls) to float the window it was reduced to a near desktop icon sized window & was not easy to see on the desktop, partially due to the desktop art I was using. Once finding it I simply dragged it to a view proportion that I was comfortable with. I had never experienced a resize of such extreme & what seemed to be the controls doing the same action was incorrect. I have resolved this. The window now opens to a proper view when launching CDB XP.