Give Apple a chance?? It crashes my iBook (10.2.3) every single time I play a presentation. Not just a simple application freeze! It causes a kernel panic! Now, from all the people in the world, you would expect that Apple would be the one to know its systems best, both software and hardware. And they should have tested the application better! It doesn't work well on iBooks 500 and they didn't know about it upon release date! Come on!!!
I'm running it on a PB G4 1 GHz with no serious problems. It unexpectedly quits every now and then but nothing serious. I've built some seriously sophisticated presentations with it and it runs without a hitch.