With all due respect, what a pris! :0)
Are you old enough to remember Dan Ackroyd playing the character Irving Mainway?
He once got big laughs reacting to "art". ie. one painting by "Titian" which he pronounced
"Titty-an" and then, as the camera zoomed in, he then pointed to a clearly visible nipple.
I suppose that I am wondering how "art" allowed nipples on Television, circa 1978, but
is cannot allow nipples on a website in 2013....
:0)
JD
P.S. I am so sorry that I cannot authoritatively chime in on your nute issue yet.
I would try flushing and then test switching to something with N but that is non-exotic
otherwise (thinking fish emulsion). Do post your thoughts on the matter.