Hey Konstantinos,

thanks for your comprehensive answer. I understand that I have to do a registration. Do I also have to flip the image in case my preferred atlas is in a different layout (not in 256 IIT LPI)? I've tried around with image transformations and header changes for over an hour now but I'm still a bit confused whether this is just something memory related or actual alteration of the interpreted data.

Thanks for your help
Darius