I have been a user of zwift since its Beta version, and absolutely love it. I was always using it on a Mac and never had any issues logging in. I have bought a PC for other reasons and loaded the zwift app on it. Since then when I try to log on from the PC, I have had on several occasions the info that the app has quit for non specified reasons and have to close it. I seems to freeze everything when this happens and have to reboot the PC. I have tried to uninstall and begin the process from scratch with no apparent improvement. Any ideas?