Hi, I tried to launch Draftsite 2017 today but the activation window came up, I filled in all the details requested, Draftsite briefly opened then closed.  I tried this a couple of times with the same result.  I have run this version of Draftsite on this computer with Windows 10 installed with no problems in the past and am still running the same setup. I uninstalled Draftsite and downloaded and installed the latest 2018 version.  Again on launching I got the activation screen (expected) but then again it briefly opened and then closed.  Anybody any idea what is happening or of any fix for this?