I am writing a win form app. and am wondering what size of screen should I design the GUI for. I my home I have a 1024x768, 1440x900 and 1920x1200. I would like the app. to be used by other people but I can not seem to decide what size screen it should be optimized for. I have experimented with controls that re-size as the win form is re-sized but it does not look good. What is generally considered to be the best way to handle form re-sizing?