Well, crikey, since I haven't sneaked before (just barged in with swords/bows blazing), I didn't realize it was so simple (but not obvious).

Guess when one first sneaks, the game needs to tell dummies like me that the characters' bodies will be "crouched". That info is not in the sneak description in the manual. But it's hard to make everything "fool proof" and I'm the fool to prove that <img src="/ubbthreads/images/graemlins/smile.gif" alt="" />)