I am having trouble using the photos uploaded to IPhoto. For some reason, when I try to upload these to Shutterfly or Snapfish, they are telling me the file is too small to even print as a 4X6. Is IPhoto resizing the photos? The pictures print beautifully if I just take the card to CVS or if I print directly from the card on my little inkjet. I used to use a PC and I never had trouble uploading to these photo sites. What am I doing wrong?? The camera is set to the highest resolution and is at 12.1 MP.