I'm also facing the components of the telescope controller going out of its window. I'm using KStars in my Windows 10 Yoga laptop with good 1080p monitor resolution. I don't see any problems with the display of KStars and EKOS but just the mount controller is having its components slipping out of the controller window boundary. This issue is not observed if I run KStars in Ubuntu in VirtualBox on my same laptop. I believe if at lease the controller window is made resizable then I can live by dragging the controller window boundaries to larger size. Right now the controller window is not having any resizing capability.

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