Cubase program window loses focus on Windows

Hello,

I have this weird behaviour on 8.0.20.
When I click “ok”, say, on saving my project under a new name (or other windows with an “ok” button), the application window loses focus, meaning if I have Google Chrome opened in the background it comes on top of the Cubase window.

Win7 ultimate 64bits, Cubase Pro 8.0.20.