Updated to latest Garmin firmware for 310XT (Fixes a LOT of stuff, definately recommended) except now the site uploader craps out.
Tested on the Garmin test site first:
Communicator Plugin is properly installed and up to date, version 2.9.3.0.
Garmin GPS device is detected and communicating properly:
Forerunner 310XT
Update is here: https://buy.garmin.com/shop/store/fr310update.jsp?null&ra=true
BT log upload does error attached:
Works good now, thx