This sounds almost too fantastic to be true, but I'm not knocking anything that could help http://news.bbc.co.uk/hi/english/in_depth/sci_tech/2001/glasgow_2001/newsid_ 1531000/1531584.stm best wishes ---------------------------------------------------------------------- To sign-off Parkinsn send a message to: mailto:[log in to unmask] In the body of the message put: signoff parkinsn