Are you importing images from Photobucket, Flickr, MySpace, or another site?
If you’re importing images from another site that aren’t jpegs, they may not display in your Slideshow. We suggest these images be downloaded to your computer, and then re-uploaded to our site directly from your hard drive. This process will convert your images to JPG format so that you can view them. If you upload images from your profile (MySpace, Facebook, Blogger, etc) and you decide to delete any of these images, they will also be removed from your Slideshow, since the image source has been removed, in this case, from your profile.