I officially became a registered EF user today, after having tried it off and on for some time. The first thing I did was to create a new library and import some .pdf files (27). After I imported the .pdf files, I started trying to tag them. Unfortunately, tagging doesn't seem to be very stable:
1) When I highlight an item in the browser window, the info window does not always follow the highlighted item and display the correct info.
2) Tagging one item sometimes changes the tag another item.
3) Moving between items sometimes makes EF "forget" tags and default to "unread".