Hi, first of all, thanks for the great tutorial, it worked like a charm.
I don't quite get why you shift the UV layout by a pixel? I didn't do it, and it turned out ok aswell.
Heres a video of the model you made for this tutorial how it looked for me:
http://www.wesleytack.com/upload/dobbeltje.avi
Anyway, I started a more complex model, and I have an error I don't know why?
I have an area in the renderwindow/normal map thats black, any idea why this happens?
Also, someone said the green channel is reversed or something? does my normal map look ok? or wrong? I have no idea

Also, my mesh on the high and low poly models is the same.
Hope you can help me out!
Cheers