The DNG Converter window isn’t showing the bottom area. It looks like the DNG window frame is a fixed size but the screen elements inside it are enlarged, or you’ve recently changed the screen resolution but the DNG window size is remembered using the old screen pixel coordinates. I have no idea how to reset the DNG window size or where those things are stored—maybe in the registry, but you can adjust the font size or screen-elements size somewhere off of the Screen Resolution panel in my Windows 8. I am not at a Windows 7 computer, right now, to check what is different.
I get to the Screen Resolution by right-clicking on the desktop background and picking it from the menu that comes up.
In other words, try changing your screen resolution and/or changing the screen element size or font size, and maybe rebooting, and see if the contents of the DNG window change to be smaller with respect to the DNG window frame.
Thank you. You got me looking in the right area. I forgot that I had changed my font size a while back because I wasn't happy with my Google Chrome display. I had set it to medium. I changed it back to smallest, and now everything is good. Just a matter of compromising, I suppose.