I just updated to FTM 16. I am using Vista. I received the message that "Windows can't install the Amyuni Document Converter 2.10 kernel-mode print driver. To obtain a driver that is compatibile with the version of Windows you are running, contact the manufacturer". Both my older version and this new one, of FTM, shuts down when I try to save some of the trees and books to PDF. I tried to download a patch, on the old version, but it didn't work. I haven't tried it on the new one.