This option deserves an award for being especially cryptic. It can be safely ignored if your application does not use drop-down combo boxes, date pickers, or any other field editing control which includes a little down arrow button on the right side which opens the field up. If it does, then there is a potential problem in that Windows, in its infinite wisdom, does not allow those edit boxes to be scaled, while normal edit boxes can be. Thus, if you have a mixture of the two types of edit boxes and you adjust the window size, the edit boxes will change in height, but the combo boxes will not. If this effect bothers you, then set this option, which will force the edit boxes to remain at the same height as the combo boxes. (That, however, overrides the previous option, as well as undermines the ability to adjust the ratio of font sizes to their containers by adjusting the window size.) So, like so many other factors in the GUI environment, it’s a tradeoff.