So, today, when a Forum member came up with a quaternion problem, I was in two minds whether to step in and have a look. I spent most of the day trying to figure out what was happening, and eventually I reached a "Eureka!" moment when things fell into place. So......I guess the moral of the story is tackle your problems with persistance, and all will come right! I might add, that without the RAD part of 3D Rad, I would probably still be buggering around with the problem (or perhaps given up)
Anyway, tomorrow will be a new day, and its on with the Eureka! project......I hope to have a spring balance in place by the end of the weekend.