The CBC form falls partially off screen when the screen zoom factor in MS Windows is set such that the resulting form height is more than the screen height. I use a Microsoft Surface Pro 2 with native resolution oi 1920x1080 and recommended 150% zoom. In this setting I cannot reach the buttons on the bottom also because the form height cannot be reduced any further to fit the visible area.

If I reduce the zoom to 125% or 100% the buttons become visible and can be clicked (but then the text is barely readable).