Sara Thank you for your interesting message. My father, Nigel 77/16 yrs with PD., was encouraged by your reply. I will certainly let you know of any developments. I could not read the binary file as I am afraid my computer skills do not run to `UUDECODE to extract' and my computer expert friend is away this weekend. > The following binary file has been uuencoded to ensure successful > transmission. Use UUDECODE to extract. I hope your father is fully recovered. Mine had a hernia op last year. Thanks again and best wishes Rosemary