Out of curiousity, is this a customized login box
https://4js.com/online_documentation/fjs-gdc-manual-html/User/CustLogin.html, or a 4gl OPEN WINDOW, INPUT BY NAME login, password?
Also with regards to stored settings, I always recommend that developers disable stored settings on their GDC, and that your QA testers clear the stored settings each time before starting a test run. That way the position and width attributes of the window/forms you see when you are developing will be as the user sees them the first time they run the application.