I don't understand the problem. KHPro can be maximized or shrunk to a resizable window. On my XP laptop, I see the 3 buttons at the bottom with no problem.
I am running 1024x768 display resolution. But even changing down to 800x 600 I would think the KHPro screen would be fully viewable.
Try changing your screen res to 1024x768 and see what happens... if you are still having a problem.