After a recent download (during which the camera battery went flat) there were no thumbnails for the downloaded photos I refreshed to Thumbnails to no effect. I then decided after searching for help to upgrade to Photoshop elements 10 from 5. But this did not regenerate the thumbnails and in fact when I refreshed a file that had a thumbnail that was active it disappeared to show the hourglass image like all the rest. Thinking that now that I had 10 I would download a neww batch of photos as my camera was filling up. I did so and Lo no thumbnails also it downloaded very old photos that I thought were erased from the camera. What is going on and can someone help.