Klas,
Thank you.
Here is what I came up with and it seems to work.
I used the normal map as the displacement image.
In the second image I added a Visualise normal 01 and a Compute normal 01 with smoothing checked.
The third image is strictly using the normal map as displacement.
The forth image is changing light direction.
It appears that using the Visualise normal 01 and a Compute normal 01 works well and gives a more natural look.
Thanks for correcting me and allowing me to use my head.
Marc
Note: I didn't know the normal functions were there. Also, I'm using version 2.1.18.1 Deep Edition.