I've applied the latest security patch. Other than that, the only thing I can think of is I've imported a lot of photos into iPhoto (iLife '04). I now have over 2100 photos in it. But all my panics have occurred when the screensaver was running or the iBook had switched to sleep mode. I'm thinking that the panics only happen when the screensaver is trying to use my photo collection. I'll change the settings in the screensaver to not use my photos and see if it makes a difference.
