Since it was I who encouraged Jeff off-forum to ask his question, I feel I should add something. I took a look at the .quad file in question and was puzzled why QTR behaved the way it did. The header line in the .quad lists the eight inks in the correct order, and I'd have thought that QTR should either refuse to print with an invalid curve, or ignore the surplus two ink positions, since the header line only lists eight. It's not a major issue once you realise the source of the problem, but it struck Jeff and I as odd behaviour by QTR.