Folder name disappeared

Very strange, I was doing some cutting & pasting in our My Pictures folder and I cut a few photos out of one of the sub folders, when I hit the back button to return to the main My Pictures folder all the thumbnails were present but the file name that is usually located right under each folder was not there. I have tried to refresh and resort the folder but I can't get any of the file names to appear under the thumbnails. If I view the folder with the other view types the file names are all present. They just don't show up when viewing with thumbnails.
Other folders that I view with the thumbnails are not having this issue.

Any ideas ?

Keith