If you have the problem that – when presenting something with Powerpoint and want the actual presentation to be shown on the projector (or big screen).... but then what you get instead is the "presenter view" wrongly blasted there. Here's how to fix it.
Permanently.
1) Launch Powerpoint
2) (menus) Slideshow
3) Setup Show...
4) Screen...
5) Move the black box outline to the other screen
6) Done!
Works at least in Powerpoint 2008.
