so I wonder where Carbide.c++ v2.0 gets the AppTRK. If you install through the tab "Install remote agents" you are getting v3.0.9 on the phone. But if you connect it first time through USB on E71, the phone resets. After rebooting it claims to be connected.
Also with v3.0.9 same problems "Error: TRK not connected."
So now I have enough of this and will give up and need to tell the training class next week that it not possible to remote debug a S60 3.1 device using Carbide.c++ v2.0.