Thank you for your quick reply. I'm having the strangest problem. . I'm using Powerpoint 2008 for MAC, and after saving as a ppxs I think? And moving it to a Windows XP touchscreen.. the first one played PERFECTLY with the PowerPoint Viewer 2010.. I had to make a few changes to the main one, and no matter how many variations of saving and placing back on the Kiosk.. when opening it says "Cannot access files "then the filesname" and I have absolutely no idea what is going on ... I have literally saved 20 variations.. using older settings, newer, slideshow, ppt, pps, etc.. Has anyone faced this?