Trygve,
Is the volume up on the track that you have the Realtrack loaded on? Also, try loading the Realtrack into another location.
While we solve this problem, can you please follow the 1, 2, 3 below and deactivate #3 ("Show custom track labels and descriptions"). This will force BIAB to show the original track names and make it easier for us to suggest what to do.

When you have the above #3 deactivated, on which track have you placed the Realtrack?
Regards,
Noel
P.S. When we get you up and running, you can reactivate the custom names for tracks.