Refresh Thumbnail

I had the weirdest thing happen to me last week. I still can't figure out exactly WHAT I did. But I finally figured out how to solve my problem. When re-organizing my photos on my computer, somehow all my thumbnails became messed up. I had duplicate thumbnails in the same folder but when I would click on the photo to enlarge it, it would show up as another picture (which was really a good thing b/c I initially thought I had accidentally deleted all these photos but when I went to the recycle bin to restore them they weren't there).
Well, after messing around with it today I discovered that if you right-click on the thumbnail, in the list of actions, you will find one that reads REFRESH THUMBNAIL. Woohoo!! All my thumbnails now match the photo it belongs with. Life is good again :)