Auto-Center a Workbook On Any Screen

I would like to find a VBA code that will automatically center a document on any users' screen, despite the size. Can I change resolution and change back to the original resolution when the document closes? My screen resolution is 1920x1080. Or is this an Auto-Zoom function? I'm new to VBA, so I don't understand all the different functions and commands and such, but based on the little research I've done, it seems "do-able". I've attached a screen shot of how I would like my document to look on all screens. I have the zoom set at 135%.

MPU Screen Shot.doc