The other day I attended a meeting where the presenter switched from a PowerPoint slide to demonstrate an application. When he made the switch it was quite obvious the beamer was setup to only display the 4:3 slides to the maximum of the white screen. Since his desktop was in a 16:10 resolution the application was falling of the screen on both sides. While I was preparing a presentation myself I wanted to be sure my presentation would be in the same resolution as my desktop as I would be switching between my slides and Visual Studio.