My garmin 830 suddenly looses all training activites for the week. the only work around for me is to select the workout from the list and start using it. It looks like the scheduling logic is messed up. Its very frustrating. Its not consistent though. sometimes, when i fire up 830, and turn on the connect on my phone, it says downloading and then wipes out my schedule. Any one else facing this issue? Yesterday, i reset my device, removed from connect, bluetooth, then redid everything and only then, i could see my weekly training schedule.