Iphoto Has Crashed 5 Times In 1.5 Days


What is wrong with my iPhoto application - the application has crashed 5 times in 1.5 days.

New Power Mac G5
iPhoto version 5.04

Error messages of last two times the application crashed:
Exception: EXC_BAD_ACCESS (0x0001)
Codes: KERN_INVALID_ADDRESS (0x0001) at 0x44ff63c9
*In this case I had selected 70 pictures, clicked on Photo Book and selected the Water Color theme. Than the application crashed.

Exception: EXC_BAD_ACCESS (0x0001)
Codes: KERN_PROTECTION_FAILURE (0x0002) at 0x00000000

The first three times the application crashed, I was experimenting with the slideshow feature and transitions.