I'm probably just really behind on tech-y stuff but I just discovered this really cool feature in powerpoint that allows the presenter to view their notes while presenting but displays the full screen presentation to the audience. Kinda useful for doing presentations so that you don't have to bring cue cards or pieces of paper when you get up there in front of an audience.
It's called "Presenter View" and if you go to "View" you click "Presenter Tools".
Just thought I would share for anyone else who didn't know about it!