Missing Photos in iPhoto '11
I have, all of a sudden, multiple already imported photos that are visible in thumbnails but not in the main viewer.
Instead, the main viewing screen shows only a large exclamation mark in a double triangle this is in an otherwise black screen.
iPhoto '11 version 9.2.1, running OS 10.7.3, MacBook Air 1.8 GHz Intel Core i7, 4 GB 1333MHz DDR3,
What Happened?
Is it repairable?
This, by the way, happened soon after the import and before my usually scheduled back up.
Therefore, no backup for these photos
Also, where is the iPhoto Library?
MacBook Air, Mac OS X (10.7.2)