I had the same problem once. One of the members gave me these instructions.
go to the macro tab
click enter
on the first line click and seledt OpenForm
at the bottom of the screen go to the Form Name field select the name of the form that you want to be Maximized
then go back up to the next line and select maximize. Now close the macro and save it as autoexec
now when you load the database it will open and maximize the form.
Cynthia