Many black thumbnails iPhoto '11. What to do ?
iMac Intel Core Duo 2.4 GHz with 4 GB RAM and OS 10.68. iPhoto has about 5% black thumbnails, most of which , but not all, disclose a picture upon clicking. Other than backing up the iPhoto Library and following this Apple tech note: iPhoto 6 and later: Rebuilding the iPhoto library - Apple Support is there anything to do ?
Would you agree that Options 1, 2, & 6 should be checked ?
iMac, Mac OS X (10.6.8)