I am using an old Nikon D70 with a 4 GB memory card. It has been working well, with no major errors for over a year now. Today I took ~100 photos, and when I tried to upload them, it only displayed 9 images. However, when I click on the properties of the card, it says there are 3.5 GB of photos, which is about right. I don't usually delete old photos. So where are the rest of the photos? They're on the card somewhere. I checked to see if somehow they were all changed to the "hidden" setting, but they were not. Any thoughts?