Updated to iphoto 11 (version 9.4.3) and now imported photos have grey thumbnails

iPhoto 6 and later: Rebuilding the iPhoto library

I am having a similar problem. My hard disk had to be replaced. I didn't have my old iPhoto installation disk/software so I purchased the lastest version 9.4.3. After installation, I copied my iPhoto library from the newest file on my time machine to my hard disk and then imported it into iPhoto. IPhoto prompted me to update the library, so I did. The majority of my photos are there and in good shape. However, I've found so far 13 events where the key photo as well as all the photos in the event are a blank grey thumbnail. I can view the photo info, but not the photo itself. If I scroll away from those event and then back the thumbnail pic will flash for a fraction of a second, but then back to the grey.

Things I've already tried:

rebuilt the iPhoto library 4 times (I read sometimes it take 3-4 times)

repair the thumbnails 4 times

plus the other two options in the repair/rebuild section, once each

searching for the file name on my computer via spotlight

exporting the photo onto my desktop

None have worked yet. Any solutions?

Thank you for the reply. I'm glad that worked for you! Sadly it did not for me. I even rebooted the computer after for good measure.