Help with Powerbook and Cinema display


i hooked up my 20in cinema display monitor to the laptop and its stuck in Dual Display mode OR...if i choose to mirror the desktops im stuck with a 20 inch widescreen monitor in like 800X600 resolution

which sucks cause then the font is like the size of my head...

how do i make it so that the cinema display is my main monitor

according to that you can run the powerbook with the lid closed?

how the hell do i do that?