Last week I was totally embarassed while giving a presentation. I normally present my Powerpoint slides on a Mac at school connected to a projector, obviously they are created on a Mac too. But when I showed up to present, the class was moved to a different room which only had a Windows box hooked up. Oh well I thought, Powerpoint is Powerpoint, I just hooked up my iPod and opened the file. BUT NO PICTURES!!! All the work I had done importing pics and other graphics were gone, leaving just the outline of the pic and a little quesion mark letting me know that the pic was missing from the file. How can I fix/prevent this?? Thanks in advanced.