On several occasions i've imported pix from my iPhone to iPhoto and have been able to edit and email them.
More recently, I took a couple family pix i'd like to keep, but although they import into iPhoto (they show in thumbnails library view) and although the "information" dropdown indicates they're JPEGs 1200 x 1600, like other images from iPhone, these particular images can't be edited or emailed. When I initiate either of those processes, i get a gray window with a square outlined in dashes, with an exclamation mark in the middle.
"Info" in iPhoto shows the images as JPEG 1200 x 1600, just standard iPhoto specs and nothing to suggest they're different from pix i CAN edit and email.
Any idea a) why this happened and b) how i can recover these several images?