Dsharp thanks, Supposedly I am not "riding" the key. The tech/mechanics have done all of the above. I think the best suggestion so far is to change techs and see what happens then. Hopefully, they don't' come loose so I have to go that route, but I doubt it. I'll keep you posted. Any 50 posties or 820 owners, experiencing this? Frustrating and expensive. I've asked my "experts" to just fix it! No relief.