I tried to google what I'm trying to do but no actual articles comes up that relates to my plan. We're having a house party soon and I'd like to enjoy the night myself and put my MBP to work with Megaseg software on auto mode (music list cued ahead of time). How can I make the MBP work on clamshell without external monitor? I tried running the program to see if it would continue to run, but as soon as I put the screen down, MBP goes to sleep. I'd like for it be on clamshell mode to avoid any spills or such accidents since the place is not gonna be big enough and I don't wanna take a chance on it. Thanks in advance for the advises you might have for me. BTW, I could run either my late '06 15"MBP C2D Tiger, or the latest 15"MBP i5 SL. Preferably the Tiger.