You are quite right. Sorry for the misinformation. I had noticed that, with limits forced, limits are respected for translations of the feet, and I just assumed that they would also be respected for rotations.

I should realise by now that whenever I assume something about Poser, I will almost certainly be wrong. I just checked, and on my system, P6 under Win2k, limits for the goal actors are respected for translations, whether the limits are forced or just set by the switch in Poser. But, as you say, limits for rotations are not respected. I guess that this does qualify as a bug.