So, thanks to Toshiba making the worst laptop computers on the market (I know this only as a result of purchasing one), I had to send in my (nearly brand new) computer for repair.
I held onto the HDD with all my info, and they sent me a repaired machine (eventually -- they took their own sweet time about it).
Now, with all my settings the same, every time I do a thumbnail view, the program in which I'm viewing thumbnails crashes.
If I'm uploading a picture file to a website via Firefox and try to view thumbnails, Firefox crashes.
If I'm in Windows Explorer checking out my pics/vids, Windows Explorer crashes.
Even my Gif viewer program crashes when I set the views to thumbnails.
I've searched the forums and have found SIMILAR problems but was uncertain if I should utilize those steps for repair. Might the suggestions in topic "Lost Thrumbnail previews, windows XP" given to ggg3 work for me?