I've been considering for quite a long time purchasing a monitor that has better resolution and larger than my macbook pro's 15 inch. The problem is, every time I plug my Macbook into the monitor i have right now and close it to keep it out of the way the display turns off and the external monitor is useless. Is there a way to just turn off the display on the macbook pro and close it but keep it running normally. In other words, can I turn my macbook pro into a normal computer without the monitor? Let me know if this is hard to understand and I'll try to word it better. It's hard to word really.