anchor.diff:      let mouse = new GameWindowIO.Mouse()
       let keyboard = new GameWindowIO.Keyboard()
   
  -    let sw = System.Diagnostics.Stopwatch()
  +    let startupTime = System.Diagnostics.Stopwatch()
   
       do mouse.SetControl this
          keyboard.SetControl this
  
positive.code: //                        while sw.Elapsed.TotalMilliseconds < 10.0 do 1;
  
                          if first then
                              sw.Stop()
                              printfn "startup time: %As" sw.Elapsed.TotalSeconds
  
  
  
negative.code:     member x.Keyboard = keyboard :> IKeyboard     
  
      member x.Run()  =
          startupTime.Start()
          x.Run()
  
  
  