I just got an Asus VH238H for use with my MBP 13 and I am having issues getting it to work in clamshell mode. I have the monitor hooked up using HDMI at the moment. Everything is works fine when not in clamshell mode but the second I close the lid the monitor says no connection found. I need help please. I am using a Apple wired keyboard and a MagicMouse, when I close the lid and move them nothing happens. Not sure what I am doing wrong or not doing. I'm getting frustrated!!!