Greetings All, I'm brand new to this list, so here goes: My father does not suffer from full-blown Parkinson's Disease (according to his neurologist) but from a Parkinsonism symptom. He has trouble walking, lurching forward, slightly bent at the trunk as if running after his centre of gravity. He has been taking Sinemet in increasing dosages for over a year without apparent relief. In fact he now shuffles around his house with greater difficulty, stumbling and stutter-stepping with less control as time goes by. A CT scan and a MRI have not revealed to his neurologist the reason(s) for his physical/neurological problem. Any thoughts or advice on my Dad's behalf would be greatly appreciated. Thank you. Bob Johnson