I installed iLife 08 on two machines. The first machine installed everything correctly and works great. My second machine, a Power Mac G5 system, loaded, but when you select a theme for the DVD, the screen remains black but you can hear the audio associated with the theme. I've deleted the application and reinstalled but nothing changed. I tried burning a DVD to see if it was just the program, but the menu screen was blank when I placed the DVD in a player. Anyone have any ideas?