Perhaps it is just me but I have not had rotation problems with Posers "on board" props, at least that I can recall. I do frequently have rotation problems with imported props. Stewer's above solution is the least frustrating way to deal with the problem. I can usually use the direct manipulation tool to rough in the rotation, then observing the new dial settings, finish the positioning. I feel sorry for newbies who first encounter this very frustrating "feature".