Hi All.. I am creating buttons dynamically from a delimited text file and assigning text to a tooltip. This was always working just fine, but for some reason all of a sudden they stopped working. I have not done anything strange with the tooltip so I cannot explain how it happened. What seems so basic has totally stopped on me. Here is how I am creating the tooltips:

Code:
Dim myDefectFile As String
        myDefectFile = Environment.CurrentDirectory & "\Defect_Files\"

        Dim FILE_NAME As String = myDefectFile & "Defects.txt"
        Dim data() As String

        Dim objReader As New System.IO.StreamReader(FILE_NAME)

        Do While objReader.Peek() <> -1
            rawData = objReader.ReadLine()
            data = Split(rawData, ",")

            If data(0) = ToggleFile Then
                Dim dynamicButton As New Button With {
                    .Location = New Point(CInt(data(2)), CInt(data(3))),
                    .Height = 5,
                    .Width = 5,
                    .FlatStyle = FlatStyle.Flat,
                    .BackColor = Color.Magenta,
                    .ForeColor = Color.Magenta
                }

                If PictureBox1.Visible = True Then
                    PictureBox1.Select()
                    Me.PictureBox1.Controls.Add(dynamicButton)
                ElseIf PictureBox2.Visible = True Then
                    PictureBox2.Select()
                    Me.PictureBox2.Controls.Add(dynamicButton)
                End If

                Dim tip As New ToolTip
                Dim myToolTipText = "SN:" & data(1) & " '" & data(6) & "'"

                tip.SetToolTip(dynamicButton, myToolTipText)
                TextBox1.Text = "DEFECT MAP"

            End If

        Loop