The issue you have is that your display is set to the incorrect dimensions, the MT4 platform just functions on Smaller or 100%. Go into your screen settings on your notebook ( your default preference is probably Larger - 150 percent ) and reset it, this can be an issue MT4 has had for a long time. If you had a touch screen it perhaps might have functioned by pressing OK but you can view your buttons aren't set correctly in your own screenshot.