Make a button follow the mouse.

I am trying to make a button follow the mouse but with the code below the actual button is maybe about 2 inches off from the mouse's pointer. The
button is about 2 inches to the right and below of the cursor but it does follow around as intended, but for some reason when the form is maximised it is only about 1 inch to the right and 1 inch below the cursor.

VB Code:

Private Sub Form1_MouseMove(ByVal sender As Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles MyBase.MouseMove
        Dim MouseX As Integer = Me.MousePosition.X
        Dim MouseY As Integer = Me.MousePosition.Y
        Me.btnRun.Location = New Point(MouseX, MouseY)
    End Sub

I believe Me.MousePosition gives you the position of the mouse relative to the screen, while the button location is relative to it's container (i.e. the form, or a panel if the button is inside the panel). Use e to get the mouse corrdinates. That gives you the corrdinates relative to the container.

VB Code:

btnRun.Location = new point(e.x, e.y)