Datacolor User to User Support Group.

Cleaning the tile did make a difference in the negative b values,
which went from -91 to -7.x on paper white.

However the profile is still wack. The same problem exists where the
transition between the sky and the trees has a harsh ugly dark line.
After cleaning the tile I remeasured both the gray and color targets
and regenerated the profile.

I tried opening a ticket at Colorvision tech support, but they closed
it immediately 'because I had corresponded with you here on this
forum. No one has replied to my further comments after they closed the
ticket.

Derek