I upgraded from Windows 8 to Windows 8.1. With 8.0 my Vivofit was synched to my PC via the ANT Wireless device. Since installing Windows 8.1, the Vivofit no longer syncs. The Garmin supports indicates to install Garmin Express to get the update for the Vivofit software. However, the first thing it tries to do is sync. However, that is precisely what stopped working with the 8.1 upgrade. Any help is appreciated.