About two months ago, I upgraded a computer from Windows Vista to Windows 7 Home Premium. It worked fine, and, in several ways, better than before. But there's a problem. The thumbnails of photos are now an annoyance, in ways I'd not seen in XP or Vista. (I can't remember if there were thumbnails before that.) There are two problems, perhaps related.
First, when I copy photos from our camera to the hard disk, some of the thumbnails appear as if the copying process didn't finish -- that is, there's a region of solid color, with color depending on the photo, across some part of the bottom of the thumbnail. I want the thumbnails to look as much like the photo as possible, so I fix that, which I can do by copying the photo, from DSC1111 to DSC1111 Copy. The second thumbnail looks fine. Then I delete the original photo. But it's an annoyance.
The second problem is that the thumbnails don't change. I can, for example, crop a photo, and save it back with the original name, or, at least sometimes, with a new name, but the thumbnail doesn't show that the photo has been cropped, even with a view refresh. (I've tried copying the photo, as above, but those thumbnails don't reflect the crop, either. In other words, they look like the original photo.)
Thanks for any advice or help.