Chiming in too here as a color blind artist... 99% off all color deficient people suffer from R/G color blindness. I believe it has something to do with the wave length of the percieved color coming in incorrectly. The problem may also be associated with the brain. There is a lot of info and speculation, but not enough money being put into research I think. The problem isn't exactly dire to most people who suffer from it. I don't think it was mentioned but J.P. Targete is also R/G color blind. I have seen the guy work and his pallet looks pretty unorganized. Even I don't know how he does it, or how he can distinguish the hues, but I know I have gotten a lot better and telling the differences between certain hues and subtleties through practice, correction, and focus. Hopefully someday they will find a fix for this, but as it stands I don't think enough people care. Anyways, yeah.. I try not to let it bother me very much. It's a mild handicap, if that.