Dave,
As I have already indicated in previous posts, TG appears to stay in the background tasks well after disconnecting and then closing PF3.
I don't know if it has to do with the fact that before disconnecting PF3, I minimize msfs in order to access PF3, but it happens regularly.
Currently, I have to remember to "end the task" before starting pf3, or else I do not get TG.
tony