I've been using my 13" Macbook with a 21" Samsung external LCD monitor for a while. Currently when playing WoW, the game is rendered on the external monitor and the Macbook's display is blank. What I would like to do is force WoW to think that the external monitor and the build-in display is one large monitor like you can do in Windows. I'd like to be able to put all my action bars, maps, party frames, ect on the Macbook display while the game renders on the external. Does anyone know if this is possible?? I found a nice guide for Windows but I can't figure out what I need to do on OSX to make it work. Dual-Heading and WoW: A How-to Thanks!