I cannot find a constructor for SIlverlight Point which accepts two arguments (Manager.Desktop.Mouse.Move(new Point(eleX - 1, eleY - 1), new Point(eleX, eleY));). I cannot compile the code you have sent me.
Is this working on your side at all?
Can you capture a screen recording of the problem and send it to me to study? Jing is a good free screen recorder for up to 5 minutes of recording.
Is there any possibility you can grant us a direct access so we can reproduce the issue?
Hope to hear from you soon.