Upgrade from iPhoto 5 to 6 crashes, the iPhoto is not launching

Question

I recently install iLife 06 in my computer, Powerbook G4. Since I did that, I cant start iPhoto. When I click the icone, it jumps a little bit (for few seconds) and then stop, nothing happen.
I put here what iPhoto crash says:
Os privilégios foram verificados ou reparados no volume selecionado
2006-11-16 01:44:27.244 iPhoto[301] Unable to load nib file: MainMenu, exiting
2006-11-16 01:50:59.554 iPhoto[304] Unable to load nib file: MainMenu, exiting
Nov 16 01:56:38 Computador-de-Priscilla-Lotierzo mDNSResponder: Repeated transitions for interface lo0 (127.0.0.1); delaying packets by 5 seconds
2006-11-16 02:00:13.337 iPhoto[1142] Unable to load nib file: MainMenu, exiting
2006-11-16 02:00:34.369 iPhoto[1143] Unable to load nib file: MainMenu, exiting
2006-11-16 10:53:37.212 iPhoto[1272] Unable to load nib file: MainMenu, exiting
2006-11-16 11:19:28.716 iPhoto[1292] Unable to load nib file: MainMenu, exiting
2006-11-16 11:19:56.281 iPhoto[1294] Unable to load nib file: MainMenu, exiting
213: Can't create query: 0x10004003
2006-11-16 11:52:13.223 iPhoto[1400] Unable to load nib file: MainMenu, exiting
2006-11-16 11:52:21.233 iPhoto[1402] Unable to load nib file: MainMenu, exiting
2006-11-16 11:52:26.453 iPhoto[1403] Unable to load nib file: MainMenu, exiting
What I have to do?

Answer 1

plotierzo:
Welcome to the Apple Discussions. The first and easiest, if relevant, fix is to delete the iPhoto Preference file, com.apple.iPhoto.plist, from your User/Library/Preferences folder. Also run Disk Utility and repair disk permissions (should be done after any software installation or update). Give that a try and post back.
Do you Twango?
TIP: For insurance against the iPhoto database corruption that many users have experienced I recommend making a backup copy of the Library6.iPhoto database file and keep it current. If problems crop up where iPhoto suddenly can't see any photos or thinks there are no photos in the library, replacing the working Library6.iPhoto file with the backup will often get the library back. By keeping it current I mean backup after each import and/or any serious editing or work on books, slideshows, calendars, cards, etc. That insures that if a problem pops up and you do need to replace the database file, you'll retain all those efforts. It doesn't take long to make the backup and it's good insurance.