So, today I went looking for an old character file. When I ran my search, it came up with two entries for the file. The strange part was that both had the exact same path, down to the capitalization. I popped both 'containing folders' open, and other than one being maximized, both appeared to have identical contents.
Feeling somewhat skittish about that, I cut the file from one folder and pasted it in a new folder that I've been using recently (also, so I could find it again). It disappeared from both 'containing folders', and my search window now reflects a single instance of the file.
Anyone have any ideas why this might be happening?