Making A MsgBox Appear After A Blank Record Is Shown?

hi,
i have a form, which when opened, gives me a blank record. which is what i asked it to do in the OnOpen property. however, i also need a msg box to popup - but after the form has been opened. i tried placing both pieces of 'code' into the OnOpen property, however, the popup displays first, then the form opens.

so currently i have:

Private Sub Form_Load()
Select Case MsgBox("Please select the Registration Number from the drop down menu or type it in", vbOKOnly, "Select Registration Number")

End Select
End Sub
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Private Sub Form_Open(Cancel As Integer)
DoCmd.GoToRecord , , acNewRec

End Sub
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but it does the same thing. so, is there a way to make the msg box appear after the form opens with a blank record?
thank you in advance :D