Bruce and Mark- I only deleted one of them after I got the error message. I read Mark's email this morning about his updates so I immediately went back to the album and tried again - still the error 404 message.
I'm not sure how that ctrl F5 is supposed to work but after I read the message you sent, Bruce, I went back to the album and clicked on all 3 photos in the album and did the ctrl F5 on each one. I still get the error 404 message only on that one photo.
I even came out of the album, went back in, clicked ctrl F5 without being "in" a photo and still get the error message.
Again, I don't see anything happening when I do the ctrl F5. Generally I at least see a flicker as it refreshes itself.