The list without any thumbnail: Do you have a lot of stuff in the folder (more than 100 items)? P5 SR4 put a limit in the file Runtime:Prefs:LibraryPrefs.xml. Open that file in a text editor and in the end of the 4th line you'll find: previewNum="100" change 100 to whatever you want, and save back. To be safe, make a backup of the file first.