IPhoto 11' keeps crashing on startup

Question

I just downloaded (upgraded) iPhoto 08 to iPhoto 11. The program seemed to work fine at first. It imported my old library and started the facial recognition process, said it had 5 hours left before completion. I went to sleep, got up the next morning and found that iPhoto had crashed. It now crashes on startup every single time. Here is what I get from the crash dialog box. Any thoughts? All of my software is up to date.
Process:         iPhoto [371]
Path:            /Applications/iPhoto.app/Contents/MacOS/iPhoto
Identifier:      com.apple.iPhoto
Version:         9.1.1 (9.1.1)
Build Info:      iPhotoProject-5310000~5
App Item ID:     408981381
App External ID: 3231463
Code Type:       X86 (Native)
Parent Process:  launchd [134]
Date/Time:       2011-04-20 10:41:23.623 -0500
OS Version:      Mac OS X 10.6.7 (10J869)
Report Version:  6
Interval Since Last Report:          626351 sec
Crashes Since Last Report:           16
Per-App Interval Since Last Report:  4990 sec
Per-App Crashes Since Last Report:   13
Anonymous UUID:                      A216C1DC-BD37-484C-B3DA-E8E5A8BB387F
Exception Type:  EXC_BAD_ACCESS (SIGBUS)
Exception Codes: 0x000000000000000a, 0x000000001e290000
Crashed Thread:  26

Answer 1

First delete the iPhoto preference file, <b><i><font color="maroon">com.apple.iPhoto.plist</font></i></b>, that resides in your Home/Library/Preferences folder, launch iPhoto and see if that helped.
NOTE: If you're moved your library from its default location in your Home/Pictures folder you will have to point iPhoto to its new location when you next open iPhoto by holding the the Option key.  You'll also have to reset the iPhoto's various preferences.
It the above didn't help launch iPhoto with the Option key held down and try to create a new library,  If you can then the culprit is your library.  In that case make a temporary, duplicate copy of the library and try the three fixes below in order as needed:
Fix #1
delete the iPhoto preference file, com.apple.iPhoto.plist, that resides in your Home/Library/Preferences folder. 
delete iPhoto's cache files that are located in your Home/Library/Caches/com.apple.iPhoto folder.
reboot, launch iPhoto and try again.
NOTE: If you're moved your library from its default location in your Home/Pictures folder you will have to point iPhoto to its new location when you next open iPhoto by holding the the Option key.  You'll also have to reset the iPhoto's various preferences.
Fix #2
Launch iPhoto with the Command+Option keys depressed and follow the instructions to rebuild the library.
Select options #1, #2 and #6. 
Fix #3
Rebuild the library using iPhoto Library Manager as follows:
Using iPhoto Library Manager  to Rebuild Your iPhoto Library
Download iPhoto Library Manager and launch.
Click on the Add Library button, navigate to your Home/Pictures folder and select your iPhoto Library folder.
Now that the library is listed in the left hand pane of iPLM, click on your library and go to the File ➙ Rebuild Library menu option
In the next  window name the new library and select the location you want it to be placed.
Click on the Create button.
Note: This creates a new library based on the LIbraryData.xml file in the library and will recover Events, Albums, keywords, titles and comments but not books, calendars or slideshows. The original library will be left untouched for further attempts at fixing the problem or in case the rebuilt library is not satisfactory.
OT