You're misunderstanding; I'm aware that the internal video is disabled if the monitor ID is %111 (ie, nothing plugged in), but as far as I'm aware it's not possible in MESS to actually delete the screen. So I could make it not output video on the internal screen easily but there'd be a dead black screen hanging around then, and I'm pretty sure that's not what this guy wants.
What's it like in the universe where .lay files don't exist and the user can't be defaulted to an N-screen setup and be able to select an alternate 1-scrfeen layout from the Tab menu?
btw, if you find a solution for this, let me know. the 3d glasses for sms would be much nicer if you would not have to manually change the Video View when you plug in the glasses
What's wrong with the Tab menu?