I'm attempting to run a large PowerPoint presentation (170 slides / 106MB's) on a new MacBook with 1GB of RAM. There is also a 200MB sound file (AIFF) that plays with the slides. Performance seems very poor. I watched the first 10 minutes (of 22 minute total) and then it bogged down and the music stopped. I have done lots of presentation but not so large. I'm showing this at a wedding on Saturday and need it to run properly. I should have used iMovie. Are the performance issues related to Rosetta? Any suggestions on how to make it run better and work properly? I was thinking of making it in two parts. Any suggestions really appreciated.