I would HIGHLY recomend using a 3rd-party program (cleaner, etc.) to change your QT files into MPEG1 files. MOST PCs will choke on a QT file imbedded in PowerPoint. I do this ALOT, and can tell you that PC PowerPoint DOESN'T like QuickTime. Also, as you create graphics, always use a cross platform file type, like JPG, (worst<) BMP (large but better,) or preferably TIF. Tif supports transparency, and PowerPoint can read that transparency and allow for none square graphics. PNG is even better, as the files will be smaller, and still support transparencies, but you'll need a 3rd-party program (Photoshop etc,) to convert the file since C doesn't support PNG. I hope this helps! :>