Something very odd about your configuration there, having to do with screen resolution and windows display configuration perhaps… Do you have a 4K screen or something? The menus items seem very compressed or the system typeface (used for menu, command line etc.) looks too big to fit in the space provided…
Is your command line docked? If so and you undock it, what happens?
Also, your V-Ray toolbars seem to be taking up a lot of unnecessary screen real estate…