My daughters visualizer has ceased to function. You can activate it but all that appears is a black screen. If I opt to show frame rates it does, around 28fps, but there's nothing there. I thought upgrading to iLife 04 would fix it but it's just the same. If I throw out her prefs will it loose her ratings for songs, I'm reluctant to try without asking. She has a 1Gig Pb with 512 MBs and is running 10.3.3 Thanks for any info.