After years of being away from SLRs, I recently got a D7000. Just a few days later I took it on a short family vacation and shot a bunch of photos, all on auto (I've got a lot to re-learn, so I figured better safe than sorry). I just tried to import them, and every one has black lines either horizontally, or vertically (depending, of course, on the photo orientation). It looks in effect as if I am watching letterbox TV. The problem arises with both Nikon Transfer and iPhoto. Any thoughts on what I am doing wrong? Or maybe what I did wrong when I shot the photos?