Remember that setting a form to be not visible does not close the
form, so you should bring them back to visible or close them later.
If you are looking to Hide the form then you could do that too, -
look in
www.mvps.org/access for code to hide database objects.
be warned though that if you compact the database while the form is
hidden, you will delete the form.
This behaviour happens only when you set the hiden property by code -
not if you manually hide the form.