Ive just purchased this adaptor for my MBP - although it hasnt arrived yet, I was wondering what the best way of using it was?? I wish to sometimes connect to an external monitor for more screen space when editing some bits of video. Can I plug in and out while the MBP is on, or do I have to put it to sleep first?? Will the screen resolution automatically change to the best for the monitor connected? Does the notebook screen stay on as well as the external monitor, or can you cycle between which one you want on/off etc?