GUEST allen woodpecker, I can see that you are genuine, and there are several points you make which are interesting. When I have the time, I would like to offer a different point of view. However, it is very late at night here in Oz, and I am about to sign off and go to bed before going away for the weekend - I thought I'd let you know just so that you don't think I was taking a pot-shot at you and running away. I'll post again in a couple of days.

Jenny