Greetings and thank you for taking the time to read this thread. I have what I hope is really simple howto question. I currently have a Macbook running Lion. I am using a mini VGA port to connect it to my external monitor. When I close the lid on the Macbook, it switches over to the external monitor as the main screen. The Macbook does not go to sleep. I use an external keyboard and mouse. I am looking for that same behavior on my Macbook Pro. It is connected with the mini DVI port. I have an external mouse and keyboard connected to it. I understand I can Mirror the desktops, but with that done, the resolution is not so great on the external monitor. Every time I try to accomplish this on my Macbook Pro, it goes to sleep. Which is the standard behavior when closing the laptop. I can sometimes fool the monitor. I do this by waiting a few minutes and then closing the monitor. Or putting a USB drive into the Macbook Pro when it goes to sleep. I can keep doing this, but it seems like I am missing something obvious.