I'm new to Macs and I got my first one a couple weeks ago. Everything is going great, but I'm having an issue with the iVI program. Some how I changed the settings so when I open the app it pulls every video I have and locks it up. The rainbow wheel will spin for days if I let it. I've tried to open the program while holding shift, but that doesn't work. I've deleted it and reinstalled, but the settings are still jacked. How can I start over with this program or get it to allow me to change the settings? Sorry if this is a dumb question, but I can't figure it out.