Pressed return key and lost my quiery. My computor, on the latest update of Windows 10. The resolution has changed, in wide screen the images are stretched horizontally, circles are now egg shaped. OK in 4:3 format, 1024 x 768. Unable to get resolution 1920 x1080.
Have you tried upgrading drivers for your video card? Or even a fresh copy of you existing drivers. Details of card would help. I take it that you have looked at your display settings in settings, system, display.