I saw someone post on here about losing the previews from the Pictures folder. I had it happen, too. I found the answer, it was actually pretty simple! A matter of unchecking a box! Here's the page link:
http://www.vistax64.com/tutorials/88518-folder-preview-picture-change.html
I couldn't find the post asking about it, but I hope they find this post or it helps somebody else.
