newbie ?....my images are black in preview mode +edit mode
Are you dealing with B&W images? If so, I had the same problem at one point and learned that although my images are iin greyscale, they should be uploaded as RGBs. So, at the end of whatever image editing you do, do the following (In Photoshop): Image: Mode: RGB color. That solved it for me. That doesn’t add color to the image, just makes it somehow "acceptable" for uploading.