I'm not so sure, Scoville. Maybe someone new here who wasn't around last time. might have some fascinating new insights into the subject.

Well, it may be unlikely, but you never know...

[Sorry Scoville - I just realised my previous posting might have offended you. I'm sorry, it wasn't meant that way, and I was careless enough not to realise it at the time. I did put a ":-)" in though!]