I did a project in Keynote for school, and then exported it as a powerpoint presentation, which opened and worked fine in Powerpoint for OS X. But when I got to school and tried to play it on the Compaq laptop we have hooked up to the projector, it showed my CD-R as being totally empty...not a SINGLE file on it. Someone told me that I forgot to "close the session" on the mac, and thats why it wouldn't run on a PC. I have to hand it in again tommorrow afternoon...does anyone know how i can make it work? I don't even have powerpoint for Windows to test it on to make sure it works this time around....