When I browse through the image files on my USB drive, some of the .jpg files have an icon rather than the thumbnail preview. What should I do?

• When images have been edited, they can lose their thumbnail preview if they are not saved in the correct format. If images were saved in the jfif format, they should be resaved in the exif format to get the thumbnail previews back. Open the file in your image editing program and select the exif setting, and then save the file.