I am trying to use Cisco SDM on a 2811 and 2821 ISR. It is reaching the stage to enter credientals and it says a window would open but nothing happens. What is the way to get the Cisco SDM to work. Do i need anything installed on the router, currently the flash only has the IOS on it. I am hoping to run the SDM from the setup on my PC as i dont think there is any room on the flash. I alredy has IP HTTP SERVER command running on the router. but i dont know why the SDM is not loading.