In my video folder (My Documents) I have amassed a large collection of video
clips. At one point all of the files had a thumbnail of their contents. Now
as I record new ones and add them to the folder they no longer have a
thumbnail but just the Windows Media Player button. I'm sure it's just an
easy fix though I'm not sure what I need to do? Also when I open the
Properties tab of an older clip then get out of it that file then loses it's
thumbnail. So is this a File or Folder issue and how can I get my thumbs back?