We are still shaking down our new to us 255 and while cleaning found the window screens for the berth windows. I thought it strange they would open but no screens to keep out bugs. However, when I insert them and then try to close the window it feels so tight as if the window would eventually be sprung so as not to get a good seal. Question, does anyone know if you need to remove screens in order to close window for travel or whatever or am I doing something wrong?