My computer was getting jammed up with e-mails so I have had to do some drastic clearing out.The trouble is that so often people have followed a thread for so long that the subject description bears no relation to the contents and I am afraid that some e-mails well worth keeping have been wiped out. Fortunately thanks to the archive system I can recover them but that's a long job and quite unnecessary. So PLEASE could you check subject matter before you post and then you will stay in my golden memories and washed down the drain. -- Allan Day Hereford HR2 7AU allan@crwys.demon.co.uk