Something a little bit strange is happening when I execute the command tsInsertPoint.
That's obviously not a serious problem, but maybe it will interest your bugs hunters.
If not, I do apologize, I don't forget 3.3 is a beta.
So, at that moment, the rhino window is " jumping " a little, well, more " sliding ", as the move is from left to right, during a fraction of second, and after, the manipulator is hidden.
I hope it helps.
Cheers.










