I have two monitors, my macbook pro and an external one. I barely use the external one except for movies and such and was wondering if I can make it so it does a slideshow of my pictures when nothing is being used on that mointor and when I mouse over to the monitor, the screensaver will turn off. Basically, a digital photo frame for when my external monitor isn't being used by me (but connected to my MBP). Also, is there a way to view slideshow photos by keywords? I checked the slideshow tab in preferences but they only show the folders and not anything else.