OK, quick question! As regular reader will know, I have migrated to a Mac. I have tons of presentations in Powerpoint which, while written on a PC, open seamlessly on the new machine. However, when I open them in Keynote, some stuff (often charts) get screwed up and I have to regenerate the slide. Question is this: why should I use Keynote over Powerpoint? What do I get in the former that don’t get in the latter? Why should I spend my summer converting the presentations? Thanks.