PNG Picture import has color artifacts


I have a PNG that I import into Rhino which has these color artifacts:

Has anyone seen this type of thing before? I do not see it in other picture viewers. I have tried saving the image a number of ways, JPG, PNG, varying BPP and quality settings, but these little strips never disappear.

Thank you.

I fixed this problem by using a BMP file.

Hi Evan - can you post or send me the png that is messy?