Sometimes the box remembers that the folder.jpg file was another file, even if you go all the way to the top menu.
It would be nice to have a clear cache button so that the system refreshes folder.jpg.
Your post sounds more like an Idea or a Feature Request. The best place for this is in our Ideas Lab. This way someone from WD will be sure to see it. However, I would search first and make sure that there isn’t another idea similar to yours that you could add your post to and vote on.
Ideas Lab
http://community.wdc.com/t5/community/categorypage/category-id/idea
