Upgraded iPhoto. Constant thumbnail rebuilding.

Question

Since upgrading iPhoto, it is now constantly rebuilding thumbnails at startup, and telling me there are missing files.
If I press cancel, it goes to the next and the next etc etc, and eventually opens, but will do the same thing if I close and re-open iPhoto.
If I try and find the photo, I can't. It might have been renamed or something. I don;t know. I tried rebuilding the Database. No dice. Repairing Library. No dice.
I am so fed up of every time I upgrade one of these core apps, it flakes out on me.....
What can I do ? I suspect the only thing I can do it to create a brand new library and start from scratch, losing all my ambums, etc etc.
Also, that would be very hard to do as I have a 60GB iphoto library. I have no space to keep that seperate while importing and creating a new one.
Am I stuck or is this a "genius" bar visit ?

Answer 1

And?
in the iPhoto preferences is the preference to "copy imported items to the iPhoto library checked (default) or have you unchecked it (strongly not recommended)?
So since upgrading the old error has gone away and it not constantly uncessucessfully tries to rebuild thumbnails?
I have not had this error since trying to upgrade.
What changes were made just before the not found error started happening?
LN