Form class is sharing variables (Not static)

I'm creating a program that basically loops, and between iterations I want it to create a new instance of a form.

Do While 1 = 1

        'Run
        Dim AutoForm As New Form3
        AutoForm.ShowDialog()
        AutoForm.Close()
        AutoForm = Nothing

        'Clean up
        Try
            Dim oldProc() As Process = Process.GetProcessesByName("SubjectImporter")
            oldProc(0).Kill()
        Catch ex As Exception
        End Try
        Try
            AutoForm.Dispose()
        Catch ex As Exception
        End Try

        'Threading.Thread.Sleep(MinsUpdateInterval * 60 * 1000)

    Loop

However, each iteration of the form seems to be sharing the same variables (same values as when it finishes)

Imports System.Windows.Automation
Public Class Form3

Private PageLoad As Integer = 0
Private Proc As Process

Specifically; Pageload ends as a 3, and subsequently opens on a new instance with value 3. Also; on this form there is a webbroswer, which does not appear to be reset (it remembers login cookie)

Any ideas why this could be happening?