[2008] Resize and center from on primary screen

[Xancholy]

Depending on end users primary screen resolution, I size my form.

Me.Size = New System.Drawing.Size((workingRectangle.Width - 200), (workingRectangle.Height - 200))

After resizing I would like to center the form on the primary screen

Please can someone show me how to do this ?

Me.StartPosition = FormStartPosition.CenterScreen does not center it.