I think you've designed a form, expecting it to be some size less than full screen, but each time you open it, it's maximized - not that you have an issue with different users having different screen resolutions. If correct, there are two ways to do this
1) I lost the procedure I printed out & put on my desk, but I retired and can't find it on the web. I was written by a well known Access guru (maybe Allen Browne) and involved steps like: save in design view with certain property settings, go to form view, Ctrl+S to save, go back to design and tweak the settings. I can say that it worked. However the settings had to do with control box, border style, auto resize, etc. then tweaking between views. I only mention it in the hopes that someone reads this and knows where to get it.
2) The other thing you can try is DoCmd.MoveSize N1, N2, N3, N4 where Nx is a number in twips for left, right, (position of top left corner of form window), width and height.
1 twip is about 1/1440 of an inch, so if you want the top left to be 3" left of the application window, start with about 4320 for that number in the Docmd method.