Thanks a lot, Newport Boy. You seem to have summed up most of what I read on the net, plus a whole bunch of personal experience which means the world to me. By the way, want to talk trivia? I come from Yorkshire, the Viking part of old England, and now live in Denmark! The rest of your list of characteristics had me down. I have knots in the tendons under my feet too. And some years ago the undercarriage also had simlilar problems. Went away thank God. The recidivist effect is high, but you console me with the recovery time. Thanks again.