Visual Studio :: Form Not Opening - Hides Up Everything

I have a project in VS2008.Net3.5 with a Module1, form1 and form2.

[CODE]

Imports Microsoft.VisualBasic
Module Module1
Public frm1 As form1
Public frm2 As form2
Sub Main()
frm1 = New form1
frm2 = New form2
Application.run(frm1)
End Sub
'A menu sub
Private Sub menuGotoSpecification_Click(ByVal sender As Object, ByVal e As System.EventArgs) _
Handles menuGotoSpecification.Click
frm2.Show()
End Sub
End Module
Public Class form1
Private Overrides Sub Show()
LoadData()
MyBase.Show()
End Sub
End Class
Public Class form2
Private Overrides Sub Show()
LoadData()
MyBase.Show()
End Sub
Private Sub btnDone_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnDone.Click
frm1.show()
frm1.refresh()
Me.Hide()
End Sub
End Class[/CODE]

Question:

At the beginning I am opening form1 from sub Main(). Now from the menu I am openning form2. In form2 I am clicking Done button to hide form2 and go back to form1. It works fine in the 1st trial. Keeping form1 open for the 2nd time, I opened form2 from the menu. Now when I Click the Done button 2nd time it just hides up everything. Form1 does not show UP. It just exits the whole application. But in my btnDone event, I have frm1.show().