Goodness me, Kurnal, didnt they teach you ANYTHING at Moreton. What am I talking about, of course they didnt, other than how to appear macho in front of your friends and recite codes backwards. While you were drinking cheap wine down the graveyard as a youth, I, myself, was enjoying the benefits of the Scottish education system. My dearly departed dad, who I wish i had listened to a lot more as a youngster used to tell me knowledge is a lot more enjoyable when you find out yourself. He also used to say that you are never too old to learn (though he had probably never had a discussion with you on fire safety). So I am going to give you a clue, so you can find out what Lord Denning said, thus enabling you to find out for yourself and rejoice in the research. Here is your starter. It was in Hull. Come back if you are still stuck. No answering for him now, chaps.