Is rigidity a symptom of essential tremor as well as PD? All this talk about misdiagnosis has me wondering about my dad. He exhibits no tremor, but he does have rigidity. Is this a sure bet that it is PD and not ET? Michael, son of Wayne 70/69/67 See you at the Unity Walk! _________________________________________________________________________ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com. Share information about yourself, create your own public profile at http://profiles.msn.com.