I am currently running Cubase 9. I have had a strange issue since Cubase 8.0 where the menu bar becomes invisible after Cubase has been left running for a day or two. If I click where the menu should be, the menu appears but the rest of the menus are not visible. So I have been able to work even where this is the case, because I know where approximately the menus are on the screen, but it is a bit of an annoyance anyway.
Any way to fix this?