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<DIV><FONT size=2 face="Comic Sans MS">Thanks for raising this, Frank. It's a
matter that I've struggled with - and while accepting it as "received wisdom"
have never felt at all convinced. I've nothing to contribute at this stage, but
I do think it's a very good question to raise on this list and I hope there will
be some interesting and helpful postings</FONT></DIV>
<DIV><FONT size=2 face="Comic Sans MS"></FONT> </DIV>
<DIV><FONT size=2 face="Comic Sans MS">CP</FONT></DIV></BODY></HTML>