navigami

I have installed Navigami on a SPV C500.
The installation seems to be okay.
I can see the red pointer in the middle of the screen.

I have to setup the bluetooth GPS.

When I press the button for search, while coming from 5->gps->device->No Device->Bluetooth->Search

I get the response: please wait, and directly an error, upper left of the screen.

The gps is an adapt ad300 and works fine with the gps software: gpsVP.

Can somebody help?

Peter