Lock down database until username & password entered

I have made a login screen for my access 2007 database using a pop-up form with two textboxes and a button. The button has an on_click event which runs some VB code which extracts the strings from the text boxes and compares them against a table. If successful, the main menu opens.


Is there a simple way of stopping the user just being able to double click on the forms on the right hand side and opening them? i.e. so that they HAVE to enter their details first?