Ok, I'm usually very tech saavy and RARELY do I have to ask this sort of question, but I have no idea how to use HTC Sync manager. When my One is plugged in and I open Sync Manager, the only thing that happens is in the bottom right corner I see a capacity. The rest stays more or less blank, none of the buttons do anything, nothing happens. Should I uninstall it and re-install it? Is there something I need to do on the phone to make Sync Manager functional?