Form re-sizing Problem Access 2002

When I open a pop up form right click the header and go into design mode and make design changes the form will not open to it's formatted size and always minimizes itself (To a postage stamp size or smaller). forcing you to resize it every time you open it. It's a pop up form in Modal. It also, in design mode,  disregards my attempts to force it into dialog rather than sizable border format. I can import a copy and it works no problem but when I make any design change, that's it postage stamp permanent. I'm missing something!

Here are the properties