The photos are JPEG. I also haven't put any new programs on my PC. I tried rebooting it anyway and everything was the same. I did try to download iTunes to my PC, but it wouldn't run. I really can't download anything to my PC because Windows Media Center keeps coming up. I am out of ideas and am looking for help. I'm not computer literate but usually can figure things out by trial and error but this has me stumped. Thanks for any suggestions.