[2005] Help With VS Add-IN Updating control Text property is not applying properly

Ok, I am in the middle of writing an Add-IN for VS. Basically what it is is a spell checker for controls. It loops through all controls in a solution and spell checks the text in them. Well It appears to be working except that the changes are not being committed to the controls. I can visually see them change as it runs, however after closing and reopening the project none of the changes have stuck. I don't know if anyone has had any experience with creating Add-Ins and run into this, but I am pretty much at my wits end with this one. Any help would be appreciated.

Here is some of the code

This is the function that walks the documents

Code:

---

            If IO.Path.GetExtension(fileName).ToLower = ".vb" Then
                Dim control As System.Windows.Forms.Control = Nothing
                Dim designerHost As System.ComponentModel.Design.IDesignerHost = Nothing
                Dim window As EnvDTE.Window = Nothing
                Dim wasOpen As Boolean = False
                If _applicationObject.ItemOperations.IsFileOpen(fileName, EnvDTE.Constants.vsViewKindDesigner) Then
                    wasOpen = True
                End If
                window = PItem.Open(EnvDTE.Constants.vsViewKindDesigner)
                Try
                    designerHost = CType(window.Object, System.ComponentModel.Design.IDesignerHost)
                    control = CType(designerHost.RootComponent, System.Windows.Forms.Control)
                    WalkControls(control, window)
                    window.Close(vsSaveChanges.vsSaveChangesYes)
                Catch ex As AbortException
                    Throw
                Catch
                    If wasOpen Then
                        window.Close(vsSaveChanges.vsSaveChangesNo)
                    End If
                End Try
            End If

---

HEre is the code that walks the controls, I have checked this and it is getting the corrected text and replacing the Control.Text with it, however as I said above, it is just not sticking.

Code:

---

    Private Sub WalkControls(ByVal control As System.Windows.Forms.Control, ByVal Window As EnvDTE.Window)
        If control Is Nothing Then
            Return
        End If
        Dim replacedString As String = SpellCheckString(control.Text)
        If replacedString <> control.Text Then
            control.Text = replacedString
            Window.Document.Saved = False
        End If
        If control.Controls Is Nothing Then
            Return
        End If
        For Each subControl As System.Windows.Forms.Control In control.Controls
            WalkControls(subControl, Window)
        Next
    End Sub

---

Ok, I have done some more testing on this and found out some interesting stuff. It seems that I can change the text of the controls, however, it is not changing the text value in the Designer. Also if I move the control on the form afterwards then the changes are committed to the designer. This is weird. I am going to do some more testing with this later this evening and hopefully someone else has seen this before.