It took me 6 tries to successfully download the UserGuide. It is a 631 Mb .zip file, but for the first 5 tries I only got a small portion - 60 Mb, 90 Mb, etc. which produced an empty folder. Finally I got the whole 631 Mb and it opened! Seems like there is a flaw somewhere. Now if I could only get a useable v 2.7!!!