I followed your instructions and it worked. However, the slideshow was not centered on the 2nd monitor. Using full screen will stretch photos and make them useless unless it centers the photo and leaves black spaces on the sides of the television screen, correct? When it is not centered the photo is all the way to the left and a huge black area is on the right end of the television.
Any ideas on how to center the photos when they display in Slideshow mode on the second display?