[2005] Form and showing a animation

[Lasering]

Hi!!

In my project i added 16 images that form a animation. Then i added a form, in which i added a picture box (Circulo) and a Timer (Timer1).
Then i added this code:

    Dim ImagemActual As Short = 0
    Private Sub Form1_Shown(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Shown
        Timer1.Start()
     End Sub
    Private Sub Timer1_Tick(ByVal sender As Object, ByVal e As System.EventArgs) Handles Timer1.Tick
        Dim Imagens(15) As Bitmap
        Imagens(0) = My.Resources.Posicao1
        Imagens(1) = My.Resources.Posicao2
        Imagens(2) = My.Resources.Posicao3
        Imagens(3) = My.Resources.Posicao4
        Imagens(4) = My.Resources.Posicao5
        Imagens(5) = My.Resources.Posicao6
        Imagens(6) = My.Resources.Posicao7
        Imagens(7) = My.Resources.Posicao8
        Imagens(8) = My.Resources.Posicao9
        Imagens(9) = My.Resources.Posicao10
        Imagens(10) = My.Resources.Posicao11
        Imagens(11) = My.Resources.Posicao12
        Imagens(12) = My.Resources.Posicao13
        Imagens(13) = My.Resources.Posicao14
        Imagens(14) = My.Resources.Posicao15
        Imagens(15) = My.Resources.Posicao16
        Circulo.Image = Imagens(ImagemActual)
        Circulo.Update()
        ImagemActual += 1
        If ImagemActual = 15 Then ImagemActual = 0
    End Sub

With this code when i hit play, the animation in the form works perfectly. But if i add a line like this:

    Private Sub Form1_Shown(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Shown
        Timer1.Start()
        UpdateDB()
    End Sub

UpdateDB is a Sub that does a lot of stuff (opens a file, then changes a DB according to the file)
If i add this line he does the intire code of UpdateDB() and then he show ONLY the first image of the animation, like the timer isnt working. Can u help me so that he does the code in UpdateDB() and at the same time he shows the animation. If I put Timer1.Start() at the start of UpdateDB() sub its like it is the last thing he does, has if it as on last.