I am trying to create my first Windows Forms application. I created a Main form and added a Main Menu to it. I added a second Windows Form called Questionaires. I created code for the click event of one of my main menu items on the main form that looks like:

private void miQuestionaires_Click(object sender, System.EventArgs e)
{
Form frmQuestionaires = new Questionaires();
frmQuestionaires.Show();
}

The problem is that when I click on the "Questionaires" menu item, 2 instances of the Questionaires form are displayed.