That's cool, that's another good way to do it, without the 3rd party software I'm using now. The thing is that I just want to turn the screen off, like a power button, not disable it (because disabling it dumps everything on it onto the primary screen). I found that even closing and reopening the lid will reenable the laptop screen, oddly.
Maybe I'll ask compaq and ati, they might know.
Maybe I'll ask compaq and ati, they might know.